eLABORATE May/Jun 2023

PRINT POST NO. 100018653

VOL.20 NO.3

Printing a denture from start to finish

MAY/JUNE 2023

dentevents presents...

BACK BY POPULAR DEMAND!

Intraoral scanning for Digital Dentures Workflows for fabricating Full and Partial dentures digitally

SYDNEY - JUL 22 | MELBOURNE - AUG 5 Presented by Sam Dias, Dental Prosthetist This event is both a lecture documenting why you should choose digital dentures today as the optimal solution for your dental practice or denture clinic together with a LIVE systematic run-through of the process for fabricating both full and partial digital dentures. You will be able to follow Sam Dias as he explains the step-by-step process he uses in his four clinics across Sydney every day.

A demonstration of accurate intraoral scanning and prosthetic design ensures that the outcome won’t be compromised while saving time and money for you and your patient.

The session will conclude with a Q&A session discussing options leading to self-design or aided design as well as the finishing and polishing process.

This course will cover the following...

6

HOURS CPD

1. Impression vs Scanning

5. Digital denture teeth setups

A discussion and slide presentation comparing intraoral

Digital denture teeth setup tips and tricks for faster and

scanning and traditional impressions including a live scan of

more effortless setups will be detailed.

dentures will be shown. The scanning process will be shown

6. Denture base design

step-by-step and the many different impression techniques

Key principles to bear in mind when designing your denture

currently used will be reviewed and details of how these can

bases plus a guide to troubleshooting.

be carried on to the digital world shown.

7. 3D printing

2. Adding mesh and articulator adjustment

3D printing techniques plus a guide to material selection

Combining multiple scans and adjusting the setup of the

and achieving better outcomes.

virtual articulator will be shown.

8. Carded denture teeth

3. Wizard and model analysis

Step-by-step bonding technique with tips and tricks.

Wizards and model analysis tools will be explained.

9. Staining technique

4. Digital denture teeth selection

Techniques for staining and filling in the gaps.

How to select the correct digital denture teeth library will

10. Finishing and polishing

be discussed as well as the use of the measure tool plus

Tips to achieve a great final outcome.

patient notes and extra scans. Denture teeth library options and applications will be discussed.

Discussion + Q&A Session

Register Online Now at www.ios.events

REGISTRATION FEES

DATE AND TIME

Registration $660 inc gst

SYDNEY Saturday, 22 July 2023

Starts 9 am Ends 5 pm

Opens at 8.30am

MELBOURNE Saturday, 5 August 2023 Intraoral Scanning for Digital Dentures is presented by Dentevents, a division of Main Street Publishing Pty Ltd ABN 74 065 490 655 • www.dentevents.com • info@dentist.com.au Tel: (02) 9929 1900 • Fax: (02) 9929 1999 • Intraoral Scanning for Digital Dentures™ and Dentevents™ are trademarks of Main Street Publishing P/L © 2023 Main Street Publishing Pty Ltd

Register Online Now at www.ios.events

eLABORATE | CONTENTS

VOLUME 20 | NUMBER 3 MAY/JUNE 2023 On the cover...

Digital dentures remain a hot topic and in this edtion, Terry Whitty concludes his 3-part series on page 30 with a complete start to finish guide to 3D printing a denture

6 BRIEFS 8 SPECTRUM 25 CPD CENTRE 42 NEW PRODUCTS

facebook.com/elaboratenow

18 30

SPECIAL REPORT

A CENTURY OF INNOVATION: 100 YEARS OF IVOCLAR

CAD/CAM

3D PRINTING DENTURES PART 3: PRINTING A DENTURE FROM START TO FINISH

26 40

PROSTHETICS

A PATIENT SEARCHING FOR FUNCTIONALITY AND NATURAL AESTHETICS

PLAYSAFE MOUTHGUARD RE-ADAPTATION

twitter.com/eLABORATEnow

instagram.com/dentevents

THERMOFORMING

Editor and Publisher: Joseph Allbeury Technical Editor: Terence Whitty, Dip. DT (Syd)

eLABORATE™ ISSN 1834-9110 is published six times per year by Main Street Publishing Pty Limited ABN 74 065 490 655 | Printed in AUSTRALIA

PO Box 586, Cammeray NSW 2062 AUSTRALIA Tel: (02) 9929-1900 Fax: (02) 9929-1999 Email: info@dentist.com.au © 2023 All rights reserved. The contents of this magazine are copyright and must not be reproduced without the written permission of the publisher. Permission to reprint may be obtained upon application. Correspondence and manuscripts for publication are welcome. Although all care is taken, the editor and publisher will not accept responsibility for the opinions expressed by contributors to this magazine, or for loss or damage to material submitted for publication.

briefs | NEWS So much going on...

AI to address shortage of CAD technicians

T

wenty twenty three has continued along at a cracking pace with plenty of activity in the dental community globally in

By Joseph Allbeury the first half of the year.

Even though the WHO only declared an end to COVID-19 as a global health emergency on May 5, it’s hard to believe the world ever “stopped” for a time as it’s pretty much back to business as usual as it was before the pandemic.

Back in April 2019, before that madness started, I was fortunate enough to find myself in Barcelona, Spain, for the International Osteology Symposium and after that, visiting the manufacturing facility of Geistlich Pharma in Wolhusen, Switzerland. It was during school holidays and my family came along for the ride as well and we all had an amazing adventure as part of a broader European vacation.

Fast forward to April 2023 and it was a case of Déjà vu.

I was back in Barcelona for the International Osteology Symposium 2023 and post-pandemic, it was exactly like I remembered it, perhaps even bigger and better than before.

In another clear demonstration of the professions’ preference for face-to-face learning over webinars, virtual events and online learning, Osteology attracted 2400 delegates from the four corners of the globe, many the best and brightest in the world of tissue regeneration.

Over 50 Australians, the majority of who were periodontists, were also in town for the event and when you consider the costs of business class airfares, accommodation in Barcelona in the summer and registration for the event, as well as 48 hours of travel, it’s a testament to the value of this tour de force event... but more on that from page 40.

Barcelona was again at its best, with great weather, plenty of great food and amazing sights to see (BTW... Sagrada Familia still has a ways to go).

Following Osteology, I again joined 30 clinicians from Australia and New Zealand in visiting the Geistlich HQ in Switzerland which was again an amazing experience.

Geistlich are wonderful hosts, offering access to both their manufacturing facility to provide insight into how they research, develop and manufacture their cutting edge regenerative products and also their senior management team.

This edition includes insightful interviews with their CEO and CSO, with more to follow in future editions. My sincere thanks to Torben, Jitka and Geistlich for facilitating this.

In another case of Déjà vu, our largest annual event, Digital Dentistry & Dental Technology 2023, was another great success with hundreds of delegates attending for the two-day program. This year, Digital Dentistry and Dental Technology 2023 presented delegates with a choice of over 90 education sessions - 94 hours of content - in 8 concurrent streams presented by 46 speakers, making it one of the largest events in Australia in 2023, perhaps second only to the upcoming FDI Congress in September at ICC Sydney.

Enjoy the ediion...

Joseph Allbeury, Editor and Publisher

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3D is an Australian PhD research spinout whose mission is to make custom-fit medical devices accessible for everyday people through their AI CAD product, AutoDesign. Based in Copenhagen, H3D is developing dental AI CAD in partnership with Modern Dental Pacific and Andent. H3D’s entry into dental follows their strong success in the audio industry where they have become the AI CAD market leader. Mimicking their successful approach in Audio, H3D are focusing on dental labs rather than clinics. The company’s motto is “built with labs, for labs” and there is a strong emphasis on quality. This is welcome news for dental labs, who have been increasingly neglected as dental CAD companies prioritise clinics and chairside. “Labs are the gold standard in terms of quality levels and our ambition is to create the world’s best AI CAD, so partnering with them was a natural choice for us,” said Damian Png, Director of the Dental Business Unit. H3D’s AI CAD boasts an order acceptance rate of >90% in the audio market, enthusiastic product reviews and a 100% customer retention rate.

They work with iconic brands, such as Sennheiser, Amplifon and Formlabs. “H3D’s AI CAD designs look very promising - high quality standards, fast turnaround times and competitive pricing,” explained Matt Smith, General Manager at Andent. Labs see H3D’s AI CAD as a solution to the labour shortage of CAD technicians, which will ultimately help them scale their businesses.

Currently, design takes a CAD technician 10-20 minutes per order.

However, there is an industry-wide shortage of CAD technicians, so labs are forced to reject new business. “H3D’s AI CAD has the potential to be hugely impactful for our industry. It will enable us to significantly increase our production and overcome the capacity issues caused by the shortage of CAD designers. It will also facilitate the transition from thermoformed to digital splints, resulting in better quality products for dentists and patients,” said James Squirrell, CEO of Modern Dental Pacific. With H3D’s AI CAD, 100s of orders can be processed within 5 minutes. It’s so simple to use that it can be operated any lab staff. As the dental industry continues to embrace digital dentistry, H3D sees AI CAD further accelerating the trend towards intraoral scanners and 3D printing.

“We’re regularly approached by 3D printing companies, IoS companies and resellers. For them, CAD is holding back the industry, so solving this bottleneck is hugely important,” said Iain Mcleod, CEO at H3D. H3D’s AI CAD for splints will be released in Q3 2023, with crowns, dentures and aligners following shortly. The company is currently accepting expressions of interest for their Innovators program (visit https://tinyurl.com/53nvncz7), which provides early access to the AI CAD product, as well as discounted pricing. For more info, visit www.h3d.ai

H

May/June 2023

Sophisticated Disc Changer with Smart Functions

The NEW DWX-53DC 5-Axis Dental Milling Machine Changing the World of Dental Labs Elegant new design

New and improved high-performance spindle

Sealed chamber to keep milling waste isolated Built in webcam for real-time mill monitoring

DGSHAPE CLOUD performance visualisation software Optional tablet integration

www.rolanddg.com.au/dwx53dc sales@rolanddg.com | 1800 500 119

DGSHAPE ROI CALCULATORS Currently outsourcing? Estimate how much you could save with a DGSHAPE DWX dental mill.

rolanddg.com.au/roicalc

spectrum | NEWS

Another full house for Digital Dentistry & Dental Technology 2023

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he fourth annual Digital Dentistry and Dental Technology conference staged at the Novotel Sydney Brighton Beach over two days on June 2 and 3, 2023 has been another outstanding success, testatment to the appetite for face-to-face learning from the dental profession.

“The unique format of Digital Dentistry and Dental Technology has again proven itself popular, with the multiple education streams offering all delegates the opportunity to tailor their learning experience exactly in line with their individual needs,” said Dentevents’ Joseph Allbeury.

“Each year, we pay careful attention to how the digital dentistry space is unfolding and endeavour to offer sessions that are on the cutting edge. While 3D printing was certainly well represented on the education program this year as you would expect, the most exciting new technology would easily be the arrival of two 3D facial scanning systems that really captured delegates’ attention.

“Since the event began in 2018, the program has really chronicled the evolution of the digital dentistry space. 3D printing hardly rated a mention on the program ‘back’ then. And who knows, in another 5 years, the space will have shifted yet again.

“Importantly, the feedback on all levels was resoundingly positive and we can see exactly where we need to steer the event for 2024 and beyond in order to attract an even larger audience and continue to be at the cutting edge of dental education.”

Digital Dentistry and Dental Technology 2023 presented delegates with a choice of over 90 education sessions - 94 hours of content - in 8 concurrent streams presented by 46 speakers.

Topics covered included 3D printing, intraoral scanning, 3D facial scanning, milling, CAD and CAM software, materials, smile design, digital dentures, implantology, CBCT, restorative, aligners, orthodontics and more.

8 eLABORATE

“The success of Digital Dentistry and Dental Technology 2023 is thanks to a lot of help and support from everyone involved,” Mr Allbeury said.

“The event simply could not take place without our sponsors - Ivoclar, Innovatio Dental Supplies, Dental Axess and Fabdent.

Each of these companies presented an education stream packed with outstanding content and delivered by an amazing group of speakers, several of whom made the journey from overseas.

“The talent on show throughout the entire event in all streams was simply outstanding and included some of Australia, New Zealand and the world’s most sought after speakers.

“As the organiser, I am always trying to ensure the program is relevant and compelling and nothing says that more than a lecture room that is standing room only with still more delegates bulging out the door. This was certainly the case on a number of occasions throughout the event. So thank you to all the speakers who presented throughout the two days of the event.

“Thank you also goes to the dental industry and the 45 companies that participated. And I would also like to thank the NSW Government who supported the event with a Business Events Grant.

“Thank you to Dani, Angus, Frank and David who hosted lecture rooms and thank you to my family who I steal time from every year to organise and run the event.

“And finally, thank you to everyone who attended the event as a delegate, many for the fourth time. Without you, all our hard work would be for nothing.

“If you have never been before or have been to each and every edition, I hope to see you at DDDT 2024.”

Registration for Digital Dentistry and Dental Technology 2024 will open soon. Visit www.dentaltechnology.com.au for updates.

May/June 2023

spectrum | NEWS

New PrograScan® PS7 can capture 2 models in 10 seconds in one scan

I

voclar has launched the latest addition to the PrograScan family of dental laboratory scanners that have captivated technicians around the world with their ease of handling, high precision and reliability. The PrograScan® PS7 is its first high-end lab scanner that can simultaneously scan upper and lower jaw models, in just 10 seconds, fully automated and in one process. For dental technicians, this means that they can complete their work even more rapidly and efficiently with minimal interaction. The new PrograScan PS7 has been designed especially for dental laboratories with high volume throughputs.

One click. Two tables. Three times as quick. quipped with two scan tables, two optical light units and eight cameras, the new scanner allows scan jobs to be started with just one click. The pure scan time for two models is 10 seconds with an accuracy of 5 µm. The scanner automatically detects any accessories. And it only takes 2 minutes for the digital models to

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10 eLABORATE

be ready in the design software for further processing. These scans result in considerable time savings as they are approximately three times faster compared to sequential scanning procedures. In combination with the exocad DentalCAD software, PrograScan PS7 offers straightforward and intuitive handling, much like the other lab scanners of the PrograScan family. Technology, software and materials are closely coordinated with each other. The new PrograScan PS7 seamlessly integrates with all proven and digital Ivoclar workflows.

Designed for the future e’re very pleased to have once more taken a lead in shaping the digital dental world,” said Tobias Specht, Senior Director GBU Labside at Ivoclar. “With its simultaneous scan function, the new PrograScan PS7 provides a forward-thinking solution to meet the rising demands in everyday laboratory practice.”

“W

For more information, visit ivoclar.com/prograscan-ps7

May/June 2023

Extremely powerful for remarkable efficiency

PrograMill® PM7

– Automatic change between wet and dry operation – Innovative Digital Denture process with Ivotion – Intuitive, easy operation

Find out more https://bit.ly/43tGe50

1300 486 252 | orders.au@ivoclar.com

ivoclar.com

spectrum | NEWS

High-precision milling with Zirkonzahn M1 Wet Heavy Metal and Ø 98 mm orbit

Figures 1-2. The M1 Wet Heavy Metal milling unit features high stability when milling metals thanks to its four-bearing orbit with Ø 98 mm and high-torque spindle

Z

irkonzahn M1 Wet Heavy Metal milling unit was developed with a specific mission: to guarantee high precision milling of hard materials in laboratories with limited space. Thanks to the integrated wet processing function, it can namely mill hard metals such as titanium, cobalt-chrome and Raw-Abutments® (prefabricated blanks for individual titanium abutments). The machine is equipped with both wet and dry processing functions, also permitting the milling of glass ceramics and composites. In this way, all types of dental materials can be processed.

In addition, the M1 Wet Heavy Metal milling unit features high stability thanks to its four-bearing orbit with Ø 98 mm and the high-torque spindle. With its extremely compact design (48 x 69 x 63 cm) and a tool magazine for the storage of up to 8 milling burs with automatic tool changer function, this milling unit is a perfect example of versatility, ensuring dental laboratories with limited space can produce all kinds of dental restorations in-house.

12 eLABORATE

Figure 3. With its extremely compact design (48 x 69 x 63 cm), the M1 Wet Heavy Metal ensures dental laboratories with limited space can produce all kinds of dental restorations in-house.

May/June 2023

spectrum | NEWS

Figures 4-5. The set-up revealed strong divergence of the implants towards the vestibular area, which would affect the general aesthetic of the final restoration due to the well-visible screw channels in the anterior area.

Figure 6. The new Double Screw Metal software function allows the generation of additional virtual screw threads within the bar design to screw the superstructure to the bar.

Figure 7. The restoration design with the Double Screw function.

Figures 8-9. High-precision milling of the additional threaded screw channels.

Accurate titanium milling: Production of full-arch prosthetics on divergent implants with the new Double Screw Metal technique he M1, like all other Zirkonzahn milling units, is perfectly compatible with the company’s software, hardware and components, in order to guarantee a smooth workflow from the beginning to the end of the treatment. The case described in this article exemplifies a smooth workflow made for a patient suffering from maxillary edentulism. Threaded channels on the metal structure were milled with the M1 Wet Heavy Metal milling unit, showing the machine’s high-precision milling.

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May/June 2023

The production of full-arch prosthetics on divergent implants is one of the most challenging jobs for a techno-clinical team. However, the new Double Screw Metal technique avoids unaesthetic vestibular channels, ensuring the production of highly stable, bar-supported rehabilitations even in complex cases without compromising the full arch aesthetics.

In the current case, the virtual tooth set-up revealed a strong divergence of the implants towards the vestibular tooth area. To strike a balance between function, stability and aesthetics in the final restoration, a primary bar was integrated using the Double Screw Metal technique.

eLABORATE 13

spectrum | NEWS

Figures 10-11. The Double Screw bar on the implants.

Figure 12. The secondary structure screwed onto the four additional screw channels milled in the Double Screw bar.

Figure 13. Basal view of the final restoration. The bar was anodised in gold to increase the final restoration’s biocompatibility and aesthetics, reducing the grey scale value.

Figure 14. Thanks to the new Double Screw Metal technique, it is possible to produce highly aesthetic and stable bar-supported restorations even in cases of divergent vestibular implants.

14 eLABORATE

The planned restoration consisted of a titanium bar and a secondary structure in Prettau® 2 Dispersive® zirconia. The design of the primary structure incorporated an innovative CAD/CAM workflow, in which four additional screws were integrated to screw the secondary structure to the bar. The virtual position of the screws was visualised using the new Double Screw Metal function of the Zirkonzahn.Modellier design software (Attachment module), which allows the generation of virtual screw threads within the bar design.

The 3D rendering provides the optimal position of the screw channel in the primary structure, as well as the ideal fit of the screw head in the superstructure. The additional threaded screw channels were then milled during the bar milling process.

After milling, the final restoration in Prettau® 2 Dispersive® zirconia was characterised with the ICE Stains 3D by Enrico Steger and veneered in the gingival regions with Fresco Ceramics. The titanium bar was then screwed to the implants and the secondary structure to the bar.

May/June 2023

LIMITED LIMITED OFFER OFFER

AU$ AU$ 39.270 39.270

NEW! NEW! M1 M1 WET WET HEAVY HEAVY METAL METAL MILLING MILLING UNIT UNIT WITH WITH Ø Ø 98 98 mm mm

-

-

Computer-controlled milling unit with fully automatic 5+1 axis simultaneous technology Computer-controlled milling unit with fully automatic 5+1 axis simultaneous technology NEW! Milling of material blanks with Ø 98 mm NEW! Milling of material blanks with Ø 98 mm Wet and dry processing for milling all types of dental materials, even hard metals Wet dry processing for milling allRaw-Abutments types of dental ®materials, even hard metals suchand as titanium, cobalt-chrome and such as titanium, cobalt-chrome and Raw-Abutments® Tool magazine for the storage of up to 8 milling burs, with automatic Tool magazine for the storage of up to 8 milling burs, with automatic tool changer function tool changer function Particularly space-saving thanks to the compact design (48 x 69 x 63 cm) Particularly space-saving thanks to the compact design (48 x 69 x 63 cm)

Zirkonzahn Worldwide – T +39 0474 066 680 – info@zirkonzahn.com – www.zirkonzahn.com Zirkonzahn Worldwide – T +39 0474 066 680 – info@zirkonzahn.com – www.zirkonzahn.com

spectrum | NEWS

Figure 15. In the software, consistent insertion directions for all abutments can be generated when the vestibular orientation of the screw channels is revealed by the situ scan or the virtual tooth setup.

Figure 16. The abutment design must be performed taking into consideration the two available blank sizes (ø 14 or 10 mm). For this reason, the virtual abutments are provided with a double housing reproducing the two blank sizes.

Figure 17. The RAW-ABUTMENT® HOLDER permits the milling of up to three Raw-Abutments® in just one milling process.

Figure 18. After milling, the implant abutments have been detached from their holder and high-gloss polished with the Diamond Polishing Paste.

Fast manufacturing of individual abutments for high precision and fit accuracy n cases of an edentulous maxilla with divergent implants, the Zirkonzahn.

Modellier software permits the generation of a consistent insertion direction for all abutments, designing the abutment geometry individually. In this way, it is possible to prevent the vestibular orientation of the screw channels.

Raw-Abutments®, made of a highquality medical titanium alloy (Ti-6Al-4V ELI according to ASTM F136 and ISO 5832-3), are prefabricated titanium abutment blanks conceived for the production of individual abutments. Their industrially prefabricated implant connection ensures high precision and fit accuracy. Depending on their application, Raw-Abutments® are available with a diameter of 10 or 14 mm, the latter being particularly suitable for the molar region. During the design phase, the 3D rendering permits the identification of the precise diameter needed. The use of special milling strategies and burs

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Figure 19. In this case, the individual Raw-Abutments® could correct the vestibular orientation of the implants and, thanks to the golden anodisation, they helped to reduce the grey value of final restoration, for a more aesthetic result. ensure a particularly smooth surface structure and by means of specially conceived holders up to three Raw-Abutments® can be milled with the M1 Wet Heavy Metal in just one milling process.

Raw-Abutments® are equipped with an anti-rotation device and are ideal for single-unit as well as multi-unit restorations.

For more info, see www.zirkonzahn.com.

May/June 2023

LIMITED OFFER

AU$ 39.270

100 % FROM THE DOLOMITES EVERYTHING FOR YOUR WORKFLOW In the heart of the Italian Alps, with the fundamental values of discipline, innovation, trust and responsibility, we produce everything on our own. Purchasing raw materials only from specially selected suppliers, we develop new visions, dental materials, tools and technologies all under one roof. We provide dentists and dental technicians with technical support as well as educational trainings, to help them stand out in terms of quality and excellence.

NEW! M1 WET HEAVY METAL MILLING UNIT WITH Ø 98 mm

MORE INFORMATION

INTRAORAL SCANNER AND 3D PRINTER

ZIRKONZAHN SHADE GUIDES

ZIRKONOFEN TURBO

A complete package for a smooth digital workflow

With monolithic Prettau® zirconia sample teeth for optimal material and colour selection

With pre-set programs for sintering small zirconia structures in about 75 minutes

-

Computer-controlled milling unit with fully automatic 5+1 axis simultaneous technology

-

NEW! Milling of material blanks with Ø 98 mm

-

Wet and dry processing for milling all types of dental materials, even hard metals such as titanium, cobalt-chrome and Raw-Abutments®

-

Tool magazine for the storage of up to 8 milling burs, with automatic tool changer function M2 MILLING UNIT COMFORT LINE IMPLANT PROSTHETICS - Particularly space-saving thanks to the compact design (48 x 69 x 63 cm) Machines with one or two milling chambers and the extra-large Teleskoper Orbit Ø 125 mm

Ø 95

Ø 98

Ø 106

TGA approved components for more than 140 implant systems and with up to 30-year warranty

PRETTAU® DISPERSIVE® Zirconia typologies with natural colour gradient or with Gradual-Triplex-Technology

Ø 125

Prettau® 3 Dispersive®

Zirkonzahn Worldwide – T +39 0474 066 680 – info@zirkonzahn.com – www.zirkonzahn.com Zirkonzahn Worldwide – T +39 0474 066 680 – info@zirkonzahn.com – www.zirkonzahn.com

special | REPORT

Diego Gabathuler, outgoing CEO of the Ivoclar Group.

A century of innovation: 100 years of Ivoclar

S

ince its foundation, Ivoclar has become one of the world’s leading companies in the dental industry, consistently bringing customer-focused innova-tions to the market. The year 2023 marks the dental company’s 100-year anniversary, which is being celebrated under the theme “A Century of Innovation”.

Ivoclar was founded in Zurich, Switzerland, in 1923. The company relocated to the Principality of Liechtenstein in 1933, where it established its present-day headquarters. Over the years, the former tooth factory evolved into a leading manufacturer of integrated solutions for high-quality dental applications.

18 eLABORATE

The family-owned business advanced to become a global market leader in various product segments, for example, ceramic furnaces (Programat series), by supplying a comprehensive portfolio of products and systems specially designed for dental practices and laboratories. The introduction of one of the most popular products of Ivoclar’s recent history - the highly aesthetic IPS e.max lithium disilicate glass-ceramic - ushered in the “Esthetic Revolution” in 2005. The product went on to become a global market leader in its segment. Ivoclar also made a name for itself in the manufacture of highly aesthetic tooth replacements, which was the main business when the company was founded and therefore links the company’s origins to its 2023 centenary.

May/June 2023

An innovation from Ivoclar: Ivotion allows dentures to be milled from one disc in one uninterrupted process, without any complicated, time-consuming manual steps.

Manufacturing high-quality tooth replacements in the 1950s.

100 years of innovation ne hundred years of Ivoclar are associated with numerous world-class innovations, which have significantly influenced the dental industry over the years. Ivoclar maintains one of the industry’s largest and most respected research and development centres. Therefore, it is not surprising that the company has chosen “A Century of Innovation” as its jubilee theme to highlight its innovative spirit. When asked about Ivoclar’s company philosophy, Diego Gabathuler, outgoing CEO of the Ivoclar Group, explained it in the following words: “We build our

O

May/June 2023

Employees in the 1950s mixing together various raw materials for the production of acrylic teeth. success on customer-relevant innovations paired with integrated system solutions, efficient applications, excellent quality and constant reliability as well as trust and respectful cooperation.”

Furthermore, he added: “We focus on giving people a healthy and beautiful smile, resulting in a better quality of life.

For this purpose, we supply our products to around 130 countries. We employ roughly 3500 people worldwide, who continuously strive to optimise the company’s offerings of integrated solutions that feature intelligent systems, practiceoriented training and education as well as comprehensive aftersales support and customer-centric service.”

eLABORATE 19

special | REPORT

In 2021, the Group, which has more than 47 subsidiaries and branch offices throughout the world, including production facilities in Liechtenstein, Germany, Austria, Italy, Sweden, the US and the Philippines, achieved a record increase in turnover of 842 million Swiss francs in all of its markets. An additional growth in turnover has been achieved for the 2022 business year. “The 100th birthday of the Ivoclar Group takes place in dynamic times.

Nevertheless, I am certain that the company will continue to be successful in the future”, says Helmut Schuster, Chair of the Supervisory Board of the Ivoclar Group. “Why am I so confident?

Because the corporate values of respect, smile, focus, act and grow are deeply rooted within the company and they are upheld by the employees and managers of the company and above all

by Christina and Christoph Zeller and the next generation of the entrepreneurial family”.

20 eLABORATE

Highlights of the anniversary year he dental company maintains long-standing and trusting business partnerships with suppliers, customers and universities throughout the world, who - including the employees of the family-owned business - are all on a mission of “Making People Smile”. In the 2023 jubilee year, they can look forward to a series of special activities and events, such as trade fairs and further education and training courses as well as the inauguration of the new head office building at the company headquarters in Liechtenstein, which will also house the visitor and education centre. All these activities and events will highlight a century of innovation.

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More information at www.ivoclar.com/100years

May/June 2023

special | REPORT

The headquarters of Ivoclar have been located in Schaan, Liechtenstein since 1933. The new head office building which will also house the visitor and education centre will be inaugurated during the centenary year.

May/June 2023

eLABORATE 21

dentevents presents...

Infection Control

BOOT CAMP ON DEMAND ONLINE LEARNING PROGRAMME

29 VIDEOS - 8+ HOURS OF EDUCATION Presented by Emeritus Professor Laurence Walsh AO

BDSc, PhD, DDSc, GCEd, FRACDS, FFOP (RCPA), FFDT (RCS Edin)

Learn from Australia’s leading authority on infection prevention and control in dentistry about recent changes in infection control including from the Dental Board of Australia (July 2022), the ADA (4th edition guidelines August 2021 and the ADA Risk management principles for dentistry during the COVID-19 pandemic (October 2021)), the new guidelines

8

HOURS CPD

from NHMRC (May 2019), Hand Hygiene Australia (Sept 2019) and the CDNA (Dec 2018) as well as recent changes in Australian Standards and TGA regulations that are relevant to infection control.

The course provides a summary of how those changes interlink with one another and also covers practical implementation of the new requirements and what it means for everyday dental practice. Hear about the why and the how and keep up-to-date with the changes that are happening.

COURSE TOPICS This one day course will cover changes in regulations and guidelines from 2018 to 2022 including: n Risk-based precautions. n Hand hygiene and hand care practices. n Addressing common errors in personal protective equipment. n Biofilm reduction strategies. n Efficiency-based measures to improve workflow in instrument reprocessing and patient changeover. n Correct operation of mechanical cleaners and steam sterilisers. n Wrapping and batch control identification. n Requirements for record keeping for instrument reprocessing. n Correct use of chemical and biological indicators.

Register Now: www.boosterinjection.com.au

FULL UPDATE! All the changes to Infection Control Updated in 2022

Laurie Walsh is a specialist in special needs dentistry who is based at the University of Queensland in Brisbane, where he is an emeritus professor. Laurie has been teaching and researching in the areas of infection control and clinical microbiology for over 25 years and was chief examiner in microbiology for the RACDS for 21 years. His recent research work includes multiple elements of infection control, such as mapping splatter and aerosols, COVID vaccines and novel antiviral and antibacterial agents. Laurie has been a member of the ADA Infection Control Committee since 1998 and has served as its chair for a total of 8 years, across 2 terms. He has contributed to various protocols, guidelines and checklists for infection control used in Australia and represented dentistry on 4 committees of Standards Australia and on panels of the Communicable Diseases Network of Australia and of the Australian Commission on Safety and Quality in Health Care.

REGISTRATION FEES

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spectrum | NEWS

The best of IDS 2023... on video

T

he biggest and best event in dentistry is over for another two years and if you missed it, don’t despair... because eLABORATE has it covered!

Rather than only writing about what’s new at IDS 2023 in Cologne, Germany, we asked our technical editor, Terry Whitty and our favourite prosthetist, Sam Dias, to document the best of what they saw on video.

All the videos are available now at www.dentevents.tv/channel/ids2023 or scan the QR code below:

You can sign up for free through the website or simply use your existing Dental Community login to sign in and watch them all at your leisure.

“This was eLABORATE’s first foray into video reporting and we learnt a lot during the process,” said eLABORATE publisher Joseph Allbeury. “We mostly need to get better at sound!

“Overall, the videos give a unique perspective on what two Australians found interesting at the IDS in March and have presented it in a more indepth way than how the pages of eLABORATE can alone.”

Apart from these videos recorded at IDS, Dentevents.tv features hundreds of videos related to dentistry with more being continually added.

“Dentevents.TV is a dedicated video streaming service for the dental profession that we built during the first COVID-19 lockdown,” Mr Allbeury said. “We encourage you to watch the videos but also to add your own videos based around dentistry. The more the merrier!”

IDS 2025 is next on again in Cologne, Germany from March 25-29, 2025. Visit www.ids-cologne.de for more details.

Watch all the IDS videos 24/7 at www.dentevents.tv/channel/ids2023

24 eLABORATE

May/June 2023

ONLINE CPD CENTRE

Answer the questions online at www.dentalcommunity.com.au To retrieve your FREE Dental Community Login, Call (02) 9929 1900 or email joseph@dentist.com.au prosthetic | TECHNIQUES

cad | CAM

READ ME FOR

READ ME FOR CPD

CPD

A patient searching for functionality and natural aesthetics

By José María Fonollosa, PhD

Figure 1. The initial situation with the uneven line of the incisal edges in the upper jaw.

T

he expectations of a full denture restoration are always the same - the patients want to be able to chew with their dentures without any problems and regain an age-appropriate appearance. Neither was present in the following case, which is why the affected 63-year-old patient wanted new dentures. Her expectations were understandably high after years of frustration. Dental technician José María Fonollosa PhD (Barcelona, Spain) demonstrates that by combining the prefabricated teeth VITAPAN EXCELL Anterior and VITAPAN LINGOFORM Posterior, the situation was functionally and esthetically restored.

Figure 2. The progenic bite situation with occlusal stress on particular points.

The previous restoration he clinical inspection revealed a total prosthetic restoration. The denture teeth of this restoration appeared lifeless at first glance and showed unsightly discoloration. The incisal edges of the maxillary teeth did not follow the line of the lips, but were in infraposition in the first quadrant and supraposition in the second. The incisal edge of tooth 22 was also longer than that of the neighboring tooth 21. This made the esthetic zone appear asymmetrical and bumpy. The front featured a progenic bite (Angle class III), as well as a frontal open bite, which made it difficult to bite off food, and the lower lip bulged forward. Occlusal contact existed only between the incisors in the maxilla, and the lateral incisor and canine in the mandible, which led to instability and point loading during chewing.

T

26 eLABORATE

READ THE ARTICLES AND ANSWER THE QUESTIONS ONLINE

a. To look 10 years younger and more beautiful. b. To be able to eat and bite apples. c. To be able to chew without problems and regain age appropriate appearance. d. They want to be able to chew and whistle.

Question 2. In this case, the teeth of the restoration appeared... a. Lifeless and asymmetrical. b. Too White. c. Too dark. d. Too big.

By Terry Whitty

I

n parts 1 and 2 of this series, we have looked at choosing a 3D printer and the different CAD design programs available to design full dentures. In this final part, we will bring it all together and design and print a denture from start to finish.

I have chosen an immediate denture to demonstrate the complete workflow as there are still a lot of people hesitant to print dentures and an immediate denture in my opinion is the logical starting point. If we consider that the immediate denture is only a transitional denture to a longer term prosthetic, then it’s actually the ideal type of denture to get your feet wet with CAD design and 3D printing.

One main reason is that generally the greatest changes to the alveolus will occur post extraction and the denture is best replaced completely rather than just a simple reline. This will give the clinic the option to reposition the teeth to a more desirable aesthetic and functional position.

To start, impressions are taken. These can be traditional or digitally made with an intra oral scanner and we will also require a bite registration. Often, when an immediate denture is ordered, we will have a reasonable bite registration with the patient’s dentition as reference. However, it’s always advisable to have a verified bite registration confirmed by the clinician as this may indicate VD and OVD changes, ideal midline corrections and desired tooth position.

30 eLABORATE

May/June 2023

Question 1. Expectations by patients for dentures are often twofold.

They want...

3D printing dentures - Part 3: Printing a denture from start to finish

May/June 2023

Question 6. In Australia, denture base materials for 3D printing are... a. Class I b. Class II c. Class IIa d. Class III Question 7. To obtain the correct physical and optical properties of 3D print resins, always... a. Follow the manufacturer’s post processing instructions. b. Make up your own post processing protocols. c. Do no post processing at all. d. Use a hand held UV light.

Question 3. A progenic bite referred to in this article is...

Question 8. Compared to traditional methods, designing and printing a denture could have a time saving of up to...

a. Angle Class I b. Angle Class II c. Angle Class III d. Class II Subdivision 1

a. 25% b. 30% c. 60% d. 75%

Question 4. The teeth used were...

Question 9. exocad can automatically...

a. Vita Excel and Lingoform b. Phonares c. Olympic Brand teeth d. Porcelain

a. Extract unwanted teeth and socket them when making an immediate denture. b. Do everything for you so you don’t need to know how to make dentures. c. Only make crown and bridge prosthetics. d. Unexpectedly quit.

Question 5. Vitapan Lingoform have... a. Big cusps b. Automatic centric finding properties c. Better 3D printing ability d. No marginal ridges

Question 10. When making digital dentures, you can use scans derived from... a. Your iPhone. b. Models, impressions or intraoral scanners. c. Only intraoral scanners. d. Only lab scanners.

INSTRUCTIONS: eLABORATE™ is now offering subscribers the ability to gain 1 Hour CPD credit from reading articles in this edition of the magazine and answering the questions above.

To participate, log in to the Dental Community website at www.dentalcommunity.com.au and click on the CPD Questionnaires link; select the eLABORATE May/Jun 2023 questionnaire and then click START. A score greater than 80% is required to PASS and receive CPD. If you do not have a free login, call (02) 9929-1900.

prosthetic | TECHNIQUES

READ ME FOR

CPD

A patient searching for functionality and natural aesthetics

By José María Fonollosa, PhD

Figure 1. The initial situation with the uneven line of the incisal edges in the upper jaw.

T

he expectations of a full denture restoration are always the same - the patients want to be able to chew with their dentures without any problems and regain an age-appropriate appearance. Neither was present in the following case, which is why the affected 63-year-old patient wanted new dentures. Her expectations were understandably high after years of frustration. Dental technician José María Fonollosa PhD (Barcelona, Spain) demonstrates that by combining the prefabricated teeth VITAPAN EXCELL Anterior and VITAPAN LINGOFORM Posterior, the situation was functionally and esthetically restored.

26 eLABORATE

Figure 2. The progenic bite situation with occlusal stress on particular points.

The previous restoration he clinical inspection revealed a total prosthetic restoration. The denture teeth of this restoration appeared lifeless at first glance and showed unsightly discoloration. The incisal edges of the maxillary teeth did not follow the line of the lips, but were in infraposition in the first quadrant and supraposition in the second. The incisal edge of tooth 22 was also longer than that of the neighboring tooth 21. This made the esthetic zone appear asymmetrical and bumpy. The front featured a progenic bite (Angle class III), as well as a frontal open bite, which made it difficult to bite off food, and the lower lip bulged forward. Occlusal contact existed only between the incisors in the maxilla, and the lateral incisor and canine in the mandible, which led to instability and point loading during chewing.

T

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Figure 3. New restoration: Surface texture, shape and shade were age-appropriate after the integration.

Figure 4. A Class III became a Class I (neutral bite position) as a result of the realignment.

Figure 5. The course of the incisal edge harmonized with the lower lip, which no longer protruded forward.

The new restoration he aim was to change the current dentition of an Angle class III to a neutral bite position (Angle class I) in the full denture restoration, which was statically and dynamically possible, due to the positional relationship of the jaw ridges, and by changing the tooth setup. After the mucodynamic impression and determination of the jaw relation, the patient’s situation was transferred to the articulator and the wax setup was started. Thanks to the diverse selection of shades and shapes, it was possible to find the VITAPAN EXCELL anterior tooth set in the desired shade that matched the shape of the face and the jaw ridge conditions. The three-dimensional anatomical layering and the natural surface texture of the denture tooth ensured a natural and lively appearance. In the posterior region, a simple and intuitive setup was possible by closing the articulator, and thanks to the VITAPAN LINGOFORM with automatic centric finding based on the gear wheel principle.

T

28 eLABORATE

Figure 6. The patient with her new full denture restoration.

A smile restored uring the clinical try-in, the patient gave her consent and the two wax setups were implemented in resin. After finishing the denture bases, the teeth were only selectively polished with the handpiece to prevent the reduction of the juvenile surface texture of the VITAPAN EXCELL. After the integration, the patient was absolutely satisfied with her new smile and the optimized dentition. Thanks to the right choice of denture teeth and dental technology, she now had the full denture function and esthetics that she had desired for so long.

D

José María Fonollosa PhD is a Dental Technician based in Barcelona, Spain.

May/June 2023

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cad | CAM

READ ME FOR CPD

3D printing dentures - Part 3: Printing a denture from start to finish

By Terry Whitty

I

n parts 1 and 2 of this series, we have looked at choosing a 3D printer and the different CAD design programs available to design full dentures. In this final part, we will bring it all together and design and print a denture from start to finish.

I have chosen an immediate denture to demonstrate the complete workflow as there are still a lot of people hesitant to print dentures and an immediate denture in my opinion is the logical starting point. If we consider that the immediate denture is only a transitional denture to a longer term prosthetic, then it’s actually the ideal type of denture to get your feet wet with CAD design and 3D printing.

30 eLABORATE

One main reason is that generally the greatest changes to the alveolus will occur post extraction and the denture is best replaced completely rather than just a simple reline. This will give the clinic the option to reposition the teeth to a more desirable aesthetic and functional position.

To start, impressions are taken. These can be traditional or digitally made with an intra oral scanner and we will also require a bite registration. Often, when an immediate denture is ordered, we will have a reasonable bite registration with the patient’s dentition as reference. However, it’s always advisable to have a verified bite registration confirmed by the clinician as this may indicate VD and OVD changes, ideal midline corrections and desired tooth position.

May/June 2023

Figure 1. Models in bite ready to scan.

Figure 2. Scanning U and L models.

Figure 3. Bite Registration Scan.

Figure 4. Lower Scan.

Figure 5. Upper Scan.

Figure 6. Merging scans to bite registration.

Figure 7. Merged scans in correct registration.

Figure 8. exocad prescription page.

Figure 9. Selecting Printing of Denture. Select “virtual extraction” so as to automatically remove the teeth.

May/June 2023

eLABORATE 31

cad | CAM

Figure 10. Auto detection and extraction.

Figure 11. Completed auto extraction.

Figure 12. You can adjust the virtual model as required.

Figure 13. Setting occlusal plane.

Figure 14. Marking first molars.

Figure 15. Marking first premolars.

Figure 16. Auto tooth replacement.

Figure 17. Refining tooth shape size and placement.

If traditional impressions are taken, they will need to be digitised. Some may pour traditional models and scan these and some may opt to scan the actual impressions. Both will yield good results if the scanning protocols are adhered to. Often I am asked about the accuracy of scanning for dentures and I can say that we have come to a point where scanning is a very mature technology and even the inexpensive scanners available on the market

will yield results far beyond what is actually required to achieve amazing results.

Once the impressions and registration are scanned and aligned, it’s time to choose a CAD software. For this immediate denture design, I have chosen exocad as we will be able to design this denture in an incredibly short time and most of the steps are automated. exocad will automatically digitally extract and socket the

32 eLABORATE

May/June 2023

cad | CAM

Figure 18. Overlay pre-op scan to verify contours and position.

Figure 19. Define denture base border.

Figure 20. Denture base calculation.

Figure 21. Denture base merge.

Figure 22. Teeth as one piece file ready to print.

Figure 23. Denture base file ready to print.

Figure 24. Denture base in 3D printing software (Asiga Composer).

Figure 25. Teeth in 3D printing software (Asiga Composer).

teeth, take the input from the user for a few landmarks and then choose a set of teeth it feels appropriate. Of course, you can intervene and select a different size or shape of teeth; if available you could use a carded set of teeth from the library but for our demonstration, we will select teeth that we will print. A few adjustments to the size and position, a quick reference to the pre-op model and we are ready to design the denture base.

When you first start designing dentures in CAD, you may feel overwhelmed as it is a different experience. However, once you grasp the concept and add your underpinning knowledge of setting teeth, it doesn’t take too long at all to get satisfactory results.

After setting the teeth, the denture base is designed and shaped to your liking. A few mouse clicks and the files will be ready to send to the 3D printer’s slicing software.

May/June 2023

eLABORATE 33

cad | CAM

Figure 26. Asiga denture base resin.

Figure 27. Printed bases (I printed a duplicate as well).

Figure 28 Kulzer DIMA resin for the printed teeth.

Figure 29. Printed teeth.

For this case, I’m using an ASIGA MAX UV printer. I will have two files, namely the baseplate and the teeth. Obviously I cannot print these on the same printer at the same time as they use different resins, so I will print one then the other. The ASIGA Composer software is very easy to use once you get your head around it. It’s a bit industrial, but nonetheless it’s still user friendly enough and there are a lot of features you just don’t really need to worry about. Make sure you select the correct resin and the correct layer thickness, set the denture and teeth to be printed in the correct orientation and pretty much the rest is automatic. Support structures will be automatically generated and these can be edited for size and population. There are lots of tutorial videos available on the internet that can help you with this part of printing so take my advice and have a look at them as they will assist with the finer points.

Selection of resin is our next port of call. As it stands at the moment, resins for dentures all sit in the Class IIa category.

Without going into great detail, this class of 3D printable resin allows use intraorally on a long term basis. It’s much harder for manufacturers to register these types of resins with the TGA than say, a Class I resin, which is for short term intraoral use such a a surgical guide. Hence the amount of resins available for use for dentures is currently quite limited. Offerings from Kulzer, Dentsply Sirona, Saremco and Nextdent to name a few are avail-

able for use. Which is the best? This is something you will have to try for yourself as its really an individual choice–all are very good. For this demonstration, I’m using Kulzer and ASIGA resins. The ASIGA resin is not registered at this time but will be shortly and I really wanted to use it for the demonstration as it’s a very good denture base resin. For the printed teeth, I’m using Kulzer DIMA. Once the denture base and teeth are printed you can remove the supports. I remove the supports before curing as they tend to be less brittle, but you will have to decide what suits you best. Then follow the manufacturer’s instructions for cleaning and curing.

This is a very important step as it will allow the resin to achieve its correct physical and optical properties and make sure the resin is cured enough to reach its biocompatibility rating.

Once cleaned, the prints can be prepared for joining; trim any leftover supports with a bur and handpiece and then test the two parts for an intimate fit. For the joining procedure, I used some of the baseplate resin on a brush and carefully wet both surfaces before pressing them together. Some people may opt for a specialised adhesive, but again, it’s personal choice. Cure for the manufacturer’s recommended time and be aware that once you do, you will not be able to separate the parts again. If you work clean and neat, finishing is very minimal with the usual method of pumice and high shining.

34 eLABORATE

May/June 2023

Introducing....

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Joining Australian is an investment in your future and that of the Dental Technology profession The Australian Dental Technicians Association

The Australian Dental Technicians Association Joining is an investment in your future and that of the Dental Technology profession The Australian Dental Technicians Association Joining is an investment in your future and that of the Dental Technology profession Joining is an investment in your future and that of the Dental Technology profession JOIN HERE www.australiandentaltechnicians.com.au The Australian Dental Technicians Association The Australian Dental Technicians Association Joining is an investment in your future and that of the Dental Technology JOIN HERE www.australiandentaltechnicians.com.au Joining is an investment in your future and that of the Dental Technology profession profession JOIN HERE www.australiandentaltechnicians.com.au Joiningisisan aninvestment investment yourfuture future andthat thatofofthe theDental DentalTechnology Technology profession JOIN HERE www.australiandentaltechnicians.com.au Joining ininyour and profession JOIN HERE www.australiandentaltechnicians.com.au

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The ADTA has YOUR back and is dedicated to minimising any burden due to new legislation The ADTA has YOUR back and is dedicated to minimising any burden due to new legislation The ADTA has YOUR back and is dedicated to minimising any burden due to new legislation The ADTA has YOUR back and is dedicated to minimising any burden due to new legislation The ADTA has YOUR back and is dedicated to minimising any burden due to new The ADTA has YOUR back and is dedicated to minimising any burden due to new legislation legislation Support Network The ADTA has YOUR back and is dedicated to minimising any burden due to new ADTA hasSupport YOUR back and is dedicated to minimising any burden due to newlegislation legislation Network

Support Network No matter whether you are just starting out as a student, need advice with a business startup or Support Network Support Network No matter whether are just starting out as aa student, need advice with aa business Support Network want to expand youryou business into a more dynamic organisation, the ADTA has diversestartup skills, or No matter whether you are just starting out as student, need advice with business startup or No matter whether you are just starting out as a student, need advice with a business startup or want to expand your business into a more dynamic organisation, the ADTA has diverse skills, Support Network No matter whether you are just starting out as a student, need advice with a business startup or Support Network knowledge and a vast network of experience on offer at your service. want to expand your business into a more dynamic organisation, the ADTA has diverse skills, No matter whether you are just starting out as a student, need advice with a business startup want to expand your business into a more dynamic organisation, the ADTA has diverse skills, or

knowledge and aayour vast network of experience on offer at your service. want to business into aa more dynamic organisation, the has skills, knowledge and vast network of experience at your service.

No whether you are starting out ason student, need advice with a business startup or or No matter matter whether you arejust just starting out asa aoffer student, need advice with a diverse business startup want to expand expand your business into more dynamic organisation, the ADTA ADTA has diverse skills, knowledge and a vast network of experience on offer at your service. knowledge and a vast network of experience on offer at your service. want expand aamore organisation, the ADTA has diverse skills, knowledge and ayour vastbusiness networkinto of experience on offer at your service. wantto to expand your business into moredynamic dynamic organisation, the ADTA has diverse skills, TGA Guidance knowledge and a vast network of experience on offer at your service.

TGA Guidance knowledge and a vast network of experience on offer at your service.

TGA Guidance The ADTA has strong representation within the TGA's Dental Sector Working Group (DSWG) and TGA Guidance TGA Guidance The ADTA has strong representation within the Dental Sector TGA Guidance is well equipped to guide members through theTGA's process when listingWorking devices Group on the(DSWG) ARTG. and The ADTA has strong representation within the TGA's Dental Sector Working Group (DSWG) and The ADTA has strong representation within the TGA's Dental Sector Working Group (DSWG) and is well equipped to guide members through the process when listing devices on the ARTG. TGA Guidance The ADTA has strong representation within the TGA's Dental Sector Working Group (DSWG) and Members will be kept up to date with pertinent information.

TGA Guidance is well equipped to guide members through the process when listing devices on the ARTG. The ADTA has strong representation within the TGA's Dental Sector Working Group (DSWG) and is well equipped to guide members through the process when listing devices on the ARTG. Members will be kept up to date with pertinent information. is well equipped to guide members through the process when listing devices on the ARTG. Members will be kept up to date with pertinent information.

The ADTA has strong representation within the TGA's Dental Sector Working Group (DSWG) and is well equipped to guide members through the process when listing devices on the ARTG. The ADTAwill hasbe strong representation within theinformation.

TGA's Dental Sector Working Group (DSWG) and Members kept up to date with pertinent Members will be kept up to date with pertinent information. is well equipped to guide members through the process when listing devices on the ARTG. Members will be kept up tomembers date withthrough pertinent information. is well equipped to guide the process when listing devices on the ARTG. Dental Laboratory Certification Scheme* Members will be up date pertinent information.

Dental Laboratory Certification Scheme* Members will bekept keptCertification uptoto datewith with pertinent information.

Dental Certification Scheme* An industryLaboratory managed and Conformity scheme specifically for Dental Laboratories, Dental Laboratory Certification Scheme* Dental Laboratory Certification Scheme* An industry managed Certification and Conformity scheme specifically for Dental Laboratories, Dental Laboratory Scheme* this scheme identifies Certification thoseCertification that have demonstrated their capabilities against a national An industry managed and Conformity scheme specifically for Dental Laboratories, An industry managed Certification and Conformity scheme specifically for Dental Laboratories, this scheme identifies those that have demonstrated their capabilities against a national Dental Laboratory Certification Scheme* An industry managed Certification and Conformity scheme specifically for Dental Laboratories, standard and displayed their commitment to maintaining quality within dental technology. this scheme identifies those that have demonstrated their capabilities against a national Dental Laboratory Certification Scheme* An industry managed Certification and Conformity scheme specifically for Dental Laboratories, this scheme identifies those that have demonstrated their capabilities against aatechnology. national standard and displayed their commitment to maintaining quality within dental this scheme identifies those that have demonstrated their capabilities against national standard and displayed their commitment to maintaining quality within dental technology.

An industry managed Certification and Conformity scheme specifically for Dental Laboratories, this scheme identifies those that have theirquality capabilities against atechnology. national standard and displayed their commitment to maintaining within dental An industry managed Certification anddemonstrated Conformity scheme specifically for Dental Laboratories, standard and displayed their commitment to maintaining quality within dental technology. this scheme have demonstrated theirquality capabilities a national standard andidentifies displayedthose theirthat commitment to maintaining withinagainst dental eNewsletter this scheme identifies those that have demonstrated their capabilities againsttechnology. a national standard and displayed their commitment to maintaining quality within dental technology. eNewsletter standard and displayed their commitment maintaining withinsearch dentalor technology. eNewsletter Stay informed with regular news from withintothe profession,quality association, post an ad in eNewsletter eNewsletter Stay informed with regular news from within the profession, association, search or post an ad in eNewsletter the classifieds, and adopt useful information from articles into your place of business.

Stay informed with regular news from within the profession, association, search or post an ad in Stay informed with regular news from within the profession, association, search or post an ad in the classifieds, and adopt useful information from articles into your place of business. eNewsletter Stay informed with regular news from within the profession, association, search or post an ad the classifieds, and adopt useful information from articles into your place of business. eNewsletter Stay informed with regularuseful news information from within from the profession, association, search or post an ad in in the classifieds, and adopt articles into your place of business. the classifieds, and adopt useful information from articles into your place of business.

Stay informed with regular news from within the profession, association, search or post an ad in the classifieds, and adopt useful information from articles into your place of business.

Market Place Employment Opportunities, and Free Classifieds* Stay informed withfor regular news from within the profession, association, search or post an ad in the classifieds, and adopt useful information from articles into your place of business.

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cad | CAM

Figure 30. Trial fitting the teeth to the denture base.

Figure 31. Brushing the resin onto the denture base.

Figure 32. Once connected brushing around the teeth.

Figure 33. Curing.

Figure 34. Trimming.

Figure 35. Polish.

Figure 36. Finished polished denture.

36 eLABORATE

Figure 37. Fitting surface.

Figure 38. Completed denture.

May/June 2023

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– Fast and high-quality firing results due to infrared technology – New user interface for easy and intuitive operation – IoT function for free monthly equipment usage reports and customer-specific recommendations

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Making People Smile ivoclar.com | 1300 486 252

cad | CAM

Figure 39. Denture printed in one go, teeth and base.

Figure 40. Polyjet matrix printer.

About the author The results are very pleasing considering the amount of time invested–when compared to the traditional method it’s about a 75% time saving.

As a sneak into a possible future, have a look at Figures 39-40.

Polyjet Matrix printing can print the denture base and teeth at the same time. High tech stuff!

Printed dentures may not be for everyone but there is definitely a place now and in the future for 3D printing of dentures whether you like it or not. My advice is to get involved somehow before you get left behind.

Terence Whitty is a well-known dental technology key opinion leader and lectures nationally and internationally on a variety of dental technology and material science subjects. He is the founder and owner of Fabdent, a busy dental laboratory in Sydney specialising in high tech manufacturing. Using the latest advances in intra- and extra-oral scanning, CAD/ CAM, milling, grinding and 3D printing, most specialties are covered including ortho, fixed and removable prosthetics, computerised implant planning and guidance, TMD, sleep appliances and paediatrics.

Working hand and hand towards innovative prosthetics.

Kulzer’s Denture Solution Journey For all of your PALA® denture needs and solutions.

Contact your trusted Kulzer Partner TODAY! Durodent dental / Alphabond dental / City Dental / Oraltec NZ

Giving a hand to oral health info.australia@kulzer-dental.com Kulzer.com/australia © 2022 Kulzer GmbH

2326-10-22 KULZER Pala Ad 120x170 Ad 1.indd 1

38 eLABORATE

12/10/2022 8:30 am

May/June 2023

GET PRINTING NOW The new Shining 3D Accufab L4D and L4K MSLA 3D PRINTERS ARE NOW AVAILABLE

• Outstanding accuracy • Superior surface finish • 4K resolution • Huge Build platform • Multiple material options • 3rd Party resin support • Free model maker software • Built in material calibration • Intuitive and user friendly

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thermoforming | TECHNIQUES

Playsafe Mouthguard re-adaptation

By Peter Herring, Adv Dip Dent Tech, ACCDP

F

or mouthguard wearers with developing dentitions, it is very likely that over the course of the sports season, jaw growth and erupting teeth will compromise the fit and comfort of their mouthguard. To keep the mouthguard usable and providing acceptable protection over this period, it’s posible to re-adapt their existing laminated mouthguard to accomodate this.

There are limits to the amount of change that can be accounted for with this technique–the clinician will be best placed to determine if re-adaptation is feasible or a replacement mouthguard required. Note...

• Laminated Playsafe mouthguards can be re-adapted to accommodate a changed dentition; • It is most important to pay attention that the owner of the mouthguard does not bite too hard into the softened mouthguard (See step 6 + 7); • The risk of biting through the material must be minimised.

A perforated mouthguard loses its protective effect (See step 6 + 7); and • Each re-adaptation will slightly “thin” the guard, therefore it is recommended to re-adapt the guard not more often than five times and assess the mouthguards thick.

Step 1. Place the mouthguard for 10-15 seconds into water at boiling temperature.

Step 2. Remove it with the help of a spoon or similar.

Step 3. Briefly (max 2 secs) immerse the mouthguard in cold water.

Step 4. The surface is now cold enough to hold the guard and...

About the author Peter Herring is a dental technician, prosthetist and a regular contributor to eLABORATE. He is the Australasian and Indonesian distributor for Erkodent products and spends his time between offices in Perth and Bali. He also operates a busy Australian lab dedicated to thermoformed appliances. He can be contacted at pjh@erkodent.com.au or for general enquires, call Freecall 1800-242-634.

40 eLABORATE

May/June 2023

Step 5. ...to place it into the owners mouth.

Step 6. Push the guard upwards with a little pressure.

Step 7. Important: The owner should not bite into the guard uncontrolled. It’s better to guide the patient’s lower jaw into the guard.

Step 8. Have the owner push with the tongue against the guard and the assistant provide pressure with hands onto the cheeks in the gingival margin area. This position has to be kept for 2 mins.

www.erkodent.com.au www.erkodent.co.nz 24 hour online ordering

Technical support, service and training

Downloads, instructions & new products

telephone toll free 1800 242 634 - email info@erkodent.com.au online shop www.erkodent.com.au May/June 2023

eLABORATE 41

new | PRODUCTS Information contained in this section is provided by the manufacturers or distributors. eLABORATE does not assume responsibility for the accuracy of the data.

Aidite Honozir SHT Plus white zirconia

Aidite 3D Pro Zirconia multilayer blanks

Aidite Honozir SHT Plus white zirconia blanks are super high strength at >1100Mpa with a translucency of 48%. The blanks are ideal for for various indications including inlays, posterior crowns, full crown bridges, screw-retained bridges and screw-retained full crown

Aidite 3D Pro Zirconia multilayer blanks are multilayer high strength (>1050Mpa) blanks with a 57% translucency. 3D Pro Zir is ideal for various indications including veneers; inlays; anterior and posterior crowns; full crown bridges; screw-retained full

bridges. Available in a variety of shades and heights in 98mm and 95mm diameters.

Available: Alphabond Dental Tel: (02) 9417-6660 info@alphabond.com.au www.alphabond.com.au

crown bridges and implant restorations. Available in a variety of shades and heights in 98mm and 95mm diameters.

Available: Alphabond Dental Tel: (02) 9417-6660 info@alphabond.com.au www. alphabond.com.au

Aidite multilayered PMMA blanks

EVE Diacera Occluflex and Diapro Occluflex

Aidite multilayered PMMA blanks satisfy temporary restorations with function and aesthetics and protect abutments from stimulus. The material is polisher friendly enabling a high gloss finish.

The PMMA is anti-fade and shade stable and has a bending strength >120MPa. Shade <25 (ug/mm3); Water sorption <25 (ug/mm3); Solubility <5 (ug/

Eve Rotary has added two new Diacera Occluflex products to their range of Zirconia diamond impregnated polishing system. Available in medium and fine, these high diamond polishers are specially designed for full contour zirconia restorations and allow you to avoid repeated glazing after retouching. Eve has also added two new Diapro Occlu-

42 eLABORATE

mm3). Available in a variety of shades and heights in 98mm and 95mm diameters.

Available: Alphabond Dental Tel: (02) 9417-6660 info@alphabond.com.au www.alphabond.com.au

flex products to their range of Lithium Disilicate diamond impregnated polishing system.

Available in medium and fine, these highly efficient polishers give results that match glazing.

Available: Alphabond Dental Tel: (02) 9417-6660 info@alphabond.com.au www.alphabond.com.au

May/June 2023

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