eLABORATE May/June 2021

VOL.18 NO.3

PRINT POST NO. 100018653

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www.dentevents.com • info@dentist.com.au • Tel: (02)• 9929 1900 • Fax: (02)•9929 www.dentevents.com • info@dentist.com.au Tel: (02) 9929 1900 Fax: 1999 (02) 9929 1999

www.dentaltechnology.com.au www.dentaltechnology.com.au

VOLUME 18 | NUMBER 3 MAY/JUNE 2021

eLABORATE | CONTENTS

On the cover...

To find out more about laser metal printing, call Damian at Proslab Dental on (03) 8809-0500

24

CAD/CAM

KRYPTONITE: THE NEW AVENGER IN PMMA

6 BRIEFS 8 SPECTRUM 20 CPD CENTRE 42 NEW PRODUCTS

30

PROSTHETICS

DIGITAL DENTURES WITH VITA VIONIC VIGO: A SMALL TOOTH WITH A BIG EFFECT!

40

THERMOFORMING

USING GRANULES

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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 © 2021 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 Slowly by surely...

AG.Live - digitisation pays off!

S

lowly but surely I’m thinking is a good way to categorise Australia’s COVID-19 vaccine rollout.

Ahead of the Olympics,

By Joseph Allbeury Japan is vaccinating a million people a day and the US something like 4 million. In Australia, we’re almost at 7 million people total with at least one dose; it’s taking sooooo long. Every vaccination mitigates the risk of COVID-19 interrupting life once again and we’re all over that. Our saving grace ultimately will be our relatively small population, but the sooner we have a critical mass, the sooner COVID will no longer be the barometer of life.

And slowly but surely, Digital Dentistry and Dental Technology 2021 on September 10-11, 2021 at the Novotel Sydney Brighton Beach is coming together as another great event too.

Creating a COVID-safe face-to-face event has been an interesting experience and not without its challenges. Even though the vaccine rollout will have extended to well over half the population by September, events are planned using the rules that apply today rather than the rules that may apply in the future.

And apart from that aspect, access to international speakers is also restricted. Fortunately, we have no shortage of exceptional talent in Australia and New Zealand. Digital Dentistry and Dental Technology has always been about providing an accurate portrayal of digital dentistry here and now and that is what the program delivers.

With this next instalment, the program is evolving to a more mature level to cater to more experienced users with advanced sessions on 3D printing, large span implant prosthetics, digital dentures, orthodontics and more.

Grass roots sessions for delegates in the analogue to digital transition phase will remain, as will the popular handson workshops introduced in 2021. The latter includes the Intraoral Scanner Test Drive Workshops where you can test every brand of intraoral scanner in one place in a 45 minute session with experts on hand to answer all of your questions.

The owners and creators of two of Australia’s great dental exports, ASIGA 3D printers and implant bars manufactured

by Osteon Medical, will again present at Digital Dentistry and Dental Technology 2021. Justin Elsey reveals New frontiers in 3D Printing Materials and Michael Tuckman will explain how to profit from outsourced full arch design and production.

A host of talented clinicians and technicians will provide insight into every available digital dentistry solution on the market today and detail their experiences in getting the best from the technology, efficiently and economically.

This event remains the only forum that brings together clinicians and technicians to exchange ideas, debate solutions, network and have fun! We hope to see you at Digital Dentistry and Dental Technology 2021 on September 10-11, 2021 at the Novotel Sydney Brighton Beach.

Joseph Allbeury, Editor and Publisher

6 eLABORATE

mann Girrbach is all about supporting laboratories in organising digital dental workflows. With the AG.Live digital platform, this project reaches a new dimension. AG.Live helps dental technicians to manage all digital activities locally and to connect with an ever expanding global network of digital dental professionals. Patient case management is at the core of the platform, which replaces the previous C3 customer portal - this is where the patient case is created, managed and processed digitally.

Patient cases can be shared with partner laboratories for further processing and in the foreseeable future also be exchanged between the dentist and the laboratory. Not only will laboratories and clinicians be networked, but also machines and materials - for example, to access material availability or, in the future, to the operating modes of milling machines and many other relevant factors of a dental fabrication process. Thus, AG.Live will enable keeping track of all digital activities - from one place, anywhere and at any time. In doing so, it is Amann Girrbach’s intention to create a network of optimised as well as new partnerships. Network participants will be able to work and collaborate more efficiently, to focus on their strengths and thus better position themselves in the market. This management portal, which is unique on the market in terms of scope, breaks down the linearity of dental restoration processes.

Cross-linking into patient cases is now possible in a simple and straightforward manner by making patient data centrally accessible and editable. The linking of previously separate data sources creates synergistic effects from which AG.Live users can profit sustainably and gain a noticeable competitive advantage. In a further step, Amann Girrbach will implement access to the company’s own “AG Academy” training portal with numerous training and further education opportunities as well as an extensive archive of webinars and tutorials.

A

For more information, see www.amanngirrbach.com/ag-live

May/June 2021

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spectrum | NEWS

Passion for freedom: exocad 3.0 Galway

By Terence Whitty

R

ecently, exocad released version 3.0 of its Dental CAD software and it has evolved into a very mature software suite indeed. Version 3.0 belies the true evolution of exocad which has just celebrated its 10th birthday. Over the past decade, there have been myriad incremental releases, however, the significance of the updates this time around warrant a full version 3.0 designation. And, in keeping with their celebration of European capitals of culture, this release inherits the Galway name as well, so officially, the new version is known as exocad version 3.0 Galway.

The most obvious change with Galway is the completely new, sleek and clean user interface that has received a full overhaul.

Regular users will still feel immediately feel at home with the new look and feel of the software. There is even a new “Dark Mode” for lovers of that style.

New users will find the software incredibly easy-to-use as the wizard function guides you through all the steps for each operation.

For “power users” the “expert mode” allows infinite possibilities and the ability to go back to steps in and make adjustments where they are needed. For example , finished your restoration but are unhappy with one of the margin lines? You can change to expert mode and change it in a flash with a click of the mouse. You can do this with most operations, both simple and ultra complex.

Some of the highlights of exocad 3.0 Galway include: • Instant anatomic morphing - With this patent pending process, the anatomy of the teeth adjusts in real time as you move and position a tooth. This is really very helpful and has to be used to be appreciated as it will adapt to opposing teeth automatically and maintain the shape of the original anatomy.

• Parametric Shape Adjustment - Any existing tooth library can be adjusted across all of the teeth. For example, you can flatten cusps across the whole set of teeth in the library by just adjusting one of the teeth. The same is true if you want deep fissures; like magic it will be chawed across all the teeth in the selected library. Endless possibilities!

8 eLABORATE

• Advanced Bridge Connector Editing and Viewing Tools The ability to use split screen editing and new tools to change several connectors simultaneously for a faster workflow in every situation.

• Insertion Direction Control - Vastly improved new tools that give control over each individual insertion axis • New AI features in Smile Creator - Facial features are now automatically detected to automate the smile design and to get to an aesthetic proposal faster. New Mockup tooth setups give the ability to design clip on try ins so patients can try out there new smile design • Model Creator now allows the creation of digital watertight wax models that can be printed on any 3D printer, with presets for all leading manufacturers including ASIGA! • The Implant Module has been improved with colour coding and the ability to rotate the abutment connection based on the implant library used to set up Ti-bases and angulated abutments for the optimal result. The implant connection can now be switched within compatible libraries.

• The Bite Splint module now allows anatomical teeth to be included in the design of the splint so sophisticated orthotics can now be designed easily.

• The Full Denture module now includes new presets from new generic tooth lines and also the ability to create your own custom presets. exocad now offers many exciting and flexible ways to access the software. You can go all out and buy everything if you wish or you can just get what you need and add to it as the budget allows.

Standalone versions are also now available for certain models such as Smile Creator, Bite Splint and Model Creator to name a few. Whichever way you want to use exocad, you will find it extremely easy to use and you will find something for everyone be it crown and bridge, implants, splints, partials or full dentures.

Try exocad 3.0 Galway “FREE for 14 Days” by calling Fabent on 1300-878-336 or see www.fabdent.com.au/exocad_landing

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spectrum | NEWS

Ideal gateway to zirconia milling: the new PrograMill DRY

D

ental laboratories looking to mill zirconia restorations safely and efficiently in-house will find the new PrograMill DRY milling unit from Ivoclar Vivadent the ideal gateway. The CAD/CAM dry milling unit is a sophisticated system solution in a compact design that combines coordinated processes with high quality materials, mature technologies and comfortable handling.

Milling zirconia professionally: this call inspired Ivoclar Vivadent to extend its portfolio to include the PrograMill DRY 5-axis dry milling unit.

The mill is a robust entry-level unit designed for the cost-efficient production of restorations made of zirconia as well as a variety of PMMA materials (e.g. Ivotion for complete digital denture prosthetics).

Precise and flexible: designed for zirconia and Ivotion dentures he PrograMill DRY is ideally suited for milling IPS e.max ZirCAD Prime discs, enabling laboratories to optimise their cost effectiveness and efficiency. These innovative zirconia discs from Ivoclar Vivadent offer impressive aesthetic properties and a maximum range of processing options, including staining, cut-back and veneering techniques. The material is suitable for all restoration designs, ranging from crowns to multiple-unit bridges. The exceptional quality and aesthetic properties of this zirconia results from the innovative Gradient Technology employed to manufacture the discs. In addition, the PrograMill DRY unit is also suitable for the CAD/CAM production of complete dentures using the Ivotion denture system. The Ivotion Denture Holder enables the Ivotion CAD/ CAM disc to be placed in the exact position in the machine for performing the milling process. Ivotion and PrograMill DRY can be used together to produce complete monolithic dentures in a single milling operation using a digital workflow.

T

10 eLABORATE

Reliable and efficient a coordinated process he PrograMill DRY unit is fully integrated into the Ivoclar Digital workflow, offering dental laboratories a straightforward and cost-effective manufacturing process. Laboratories that are new to the field of automated manufacturing will benefit especially from the perfectly coordinated process components.

The PrograMill CAM software provides dental technicians with an intelligent software application that enables a high level of process reliability and time savings.

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Compact and convenient effortless handling ith its compact design, the PrograMill DRY easily fits in any laboratory and can be ideally placed even in a small room where space is at a premium. The milling machine offers dental technicians many practical features. For instance, the quick clamping system enables an effortless change of materials: the CAD/CAM discs can be intuitively

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and conveniently replaced using just one hand. No additional tools required. This makes it easy to operate the machine.

In a nutshell ideal for getting started rograMill DRY provides dental technicians with a reliable CAD/CAM system especially designed for processing zirconia materials - a system that is flexible, cost effective and straightforward to use. The PrograMill DRY is a compact system solution for busy dental laboratories, offering automated data transfer (CAM5 output format), convenient handling and high process reliability.

Especially those who are new to CAD/ CAM will quickly come to appreciate the benefits of this machine. PrograMill DRY - Milling zirconia oxide professionally.

P

For information, please contact, Ivoclar Vivadent Australia on 1300-486-252 or email: info.au@ivoclarvivadent.com.

In New Zealand, call 0508-486-252 or email: info.nz@ivoclarvivadent.com or visit www.ivoclarvivadent.com

May/June 2021

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spectrum | NEWS

AG.Live CON highlights the key trends of transformation in the dental industry

D

igitisation in the dental industry is unstoppable. It heralds change and at the same time offers enormous potential. The fact that many dental technicians and dentists want to seize these opportunities is evidenced by the large number of participants at AG.Live CON. 38 international speakers presented the blueprints for a new dimension of unified dentistry in numerous live presentations and discussions. All contributions are still available free of charge at http://show.aglivecon.digital.

The benefits of digitisation are clear, as Prof. Dr. med. dent. Daniel Edelhoff explained in the panel discussion: “In more and more clinical work processes, analog steps are being replaced by digital technology, which brings about enormous advantages: the simplification of process steps, reproducibility and a high degree of predictability.” However, the communication gap between dental technicians and dentists emerged as a key issue in the panel. “Laboratories have invested heavily over the past few decades and digitised in the field of CAD/CAM. However, digitisation currently stops at the interface with the dentist,” said master dental technician Andreas Kunz during the panel discussion. The experts unanimously agreed that the greatest deficit currently lies in combining all available patient data in a meaningful manner and then using these data to provide patient-specific treatment.

More than the sum of its parts hat is important is teamwork for the benefit of the patient. “For a complex restoration, you need a highly competent partner in the laboratory and a highly competent clinician. Then their combined expertise is more than the sum of the individual parts,” emphasized Prof.

Dr. med. dent. Florian Beuer. The objective must be for the two to join forces in the best possible manner. This is precisely the mission that Amann Girrbach has set itself and, after five years of development work, has

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12 eLABORATE

launched AG.Live, the largest digitisation offensive in the company’s history. This web-based portal for collaboration between laboratories and dentists offers perfect digital services at all levels. To give an example, AG.Live as a central tool for digital case management, a networking, infrastructure and material management, support and knowledge database will gradually replace the previous C3 customer portal.

tion Kit, consisting of the Ceramill Map DRS intraoral scanner, the appropriate scanning software as well as the connection to the AG.Live platform, serves as the entry-level variant. Any order data including all the required information can therefore be shared seamlessly and in real time, as the practice is linked fully digitally to the laboratory via AG.Live. This permits same-day dentistry for simple res-

On the one hand, the platform networks machines and materials in the laboratory, thereby simplifying processes and increasing quality and reproducibility. The biggest advance, however, is providing the link in a growing global network of digitally operating dental professionals. This bridges the interdisciplinary gap between dentists and dental technicians and facilitates future-oriented cooperation. In this network of optimised and new partnerships, the participants can focus on their strengths and better position themselves on the market.

torations, also with zirconia by using the Ceramill DRS High-Speed Zirconia Kit. This is supplemented by the Ceramill DRS Production Kit, which allows fabrication to be performed directly in the practice by the dentist. Here, the laboratory can assist the practice in terms of design, know-how, service and advice.

This results in 3 Ceramill Team Workflows, which can be used depending on the kit equipment and team constellation. Due to the modular design, it is possible to start on a “small scale” with the Ceramill DRS Connection Kit and upgrade to the Ceramill DRS Production Kit at a later stage.

AG.Live and DRS as well as all digitization solutions from Amann Girrbach support practices and laboratories on the journey that Prof. Dr. med. dent.

Jan-Frederik Güth describes in his summary of the panel discussion as follows: “Patient-oriented, focused, personalized, team-oriented, simplified and digital that’s where the journey is headed.”

Extending Ceramill CAD/CAM workflow to the dentist G.Live also forms the basis and interface for the Ceramill Direct Restoration System (DRS), with which Amann Girrbach extends the digital Ceramill CAD/CAM workflow to the dentist. The Ceramill DRS Connec-

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May/June 2021

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Medentika® MPS Medentika® MPS Medentika® MPS Multi Platform System Multi Multi Platform Platform System System EXCELLENT PROSTHETIC FOR ALL MAJOR EXCELLENT PROSTHETIC FOR ALL MAJOR IMPLANT SYSTEMS EXCELLENT PROSTHETIC FOR ALL MAJOR IMPLANT SYSTEMS IMPLANT SYSTEMS

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spectrum | NEWS

3Shape makes life so much easier for labs with the launch of Automate

3

Shape has launched 3Shape Automate, the world’s first AI-powered dental design service platform for dental labs. Hosted on the 3Shape website, dental lab technicians simply setup an unlimited number of design orders with their customised instructions and upload their scans to the design service.

Automate’s AI technology then returns every dental design proposal in as little as five minutes - regardless of the number of designs ordered. You only pay for the designs that you approve and download.

Talking about the ground-breaking new service, 3Shape CEO, Jakob Just-Bomholt said, “AI technology is revolutionising the world. At 3Shape, we began applying AI two years ago to make intraoral scanning with TRIOS effortless. We then used it with our dental software to make workflows much more efficient. Now with the launch of 3Shape Automate, dentistry takes a huge leap forward. It’s simply, a game changer!”

In an interview with Dentistry Today, Karl Hollenbeck, 3Shape’s head of the 3Shape AutodontiX business unit, a division dedicated to AI technology within dentistry and the mad scientist behind Automate, was asked about what he felt the biggest advantage of Automate was for labs.

In the story, Mr Hollenbeck said “There are three very big advantages: speed, consistency and scalability. But for me, I think that the greatest advantage Automate gives labs is scalability.

“Most labs experience rush periods or have times when they need to cope with an overflow of orders. Maybe a designer is out sick or on vacation, Automate instantly reduces any need for overtime or stress for your technicians. You simply fill the gap by taking advantage of Automate for your basic restorative design needs, choose a delivery time and bam, you are ready for production.

“Think about how much more cost-effective your manufacturing processes can be. Your lab’s blank management is much

14 eLABORATE

more efficient because you collect cases and simply match them with the right blanks.

“And remember, because Automate is AI driven and handsfree, you can upload an unlimited amount... 100’s of cases, to the platform and still choose your deliver time in five minutes. They will be ready when you are. For me, scalability is really the name of the game. Automate gives you instant scalability, productionwise, and in managing your lab.”

3Shape Senior Vice President for product strategy, Rune Fisker, said. “More and more dental workflows are going digital. Because of this, we felt that labs could really benefit from an easy-to-use self-service design service to supplement their caseloads. A service that could support them with, for example, a posterior CAD crown design, when they’re in a jam and don’t want to work overtime or search for an extra designer.”

An open platform mportantly, Automate is also an open platform, so technicians using 3Shape Dental System, Exocad, or even select scanners, can send their files to Automate and get a design file back in as little as five minutes. Although, 3Shape LabCare subscribers do get a 10% discount on the service. It is really about making life easier for labs.

I

How to get started abs can try Automate for free with a USD 50-dollar credit to see how it works. The self service is available 24/7 at www.3Shape.com/automate.

Automate is currently available for monolithic, single posterior crowns - premolars and molars. Because it’s AI-driven, labs can take advantage of it 24 hours a day, seven days a week.

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May/June 2021

t Contac tal nt Den Durode ge to n to arra teeth lara see De Y! TODA

Everybody's Delara® The new tooth line that makes hearts beat faster.

Years of experience from dental professionals went into the development of Kulzer's new prosthetic tooth line. Delara meets every need of dental laboratories - delivering aesthetics with a lively surface structure and unique layering, easy set-up and flexibility. Delara's modern and bright shading rejuvenates patients for a fresh and vivid appearance. You have to see it to believe it! » »

Easy set-up: the basal design of Delara was developed especially for easy set-up with minimal grinding and without changing the basic shape and layering during grinding.

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Flexibility combined with aesthetics: all indications and set-up options are possible. The unique surface structure with its blueish effect and dynamic light refraction provide a fresh and lively appearance.

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spectrum | NEWS

Streaming now on www.dentevents.tv

D

entevents.tv is a brand new website for the dental profession that offers a broad range of video-based content focussed on all aspects of dentistry - from clinical, to technology, to management, marketing and more. Sign in for FREE and watch hundreds of on-demand videos, with more being added every day. Some videos even offer CPD! A selection of videos that will interest dentists and specialists appear below - or browse the website for many many more.

27 Amann Girrbach Videos Duration Various AVAILABLE ON DEMAND • Ceramill Mikro IC - The Power Pack with the “Carving Mode” • Ceramill Mikro 5X – 5-axis technology concentrated in minimum space • Ceramill TI-Forms - Inhouse fabrication of titanium abutments • Ceramill Matik Material Management... and more...

Analysis, Set-up Principles and Patient Satisfaction for Class III Bi-Lateral Crossbite Dentures Presented by Marc Wagenseil Duration 1:50:02 AVAILABLE ON DEMAND CPD 2.0 Hours

DenTechKnow - Digital Dentures Presented by Terence Whitty Duration 0:17:41 AVAILABLE ON DEMAND In this episode of DenTechKnow, Terry Whitty explores the state-of-the-art of digital dentures. This hot topic has been the focus of digital dentistry for the past few years with hardware, software and materials companies collaborating to try and provide a fully digital solution. Terry investigates what is possible at this point in time when it comes to producing dentures using the various solutions on offer and what we can expect in the future.

Infection Control Boot Camp Presented by Prof. Laurence Walsh Duration 7:08:14 AVAILABLE ON DEMAND CPD 6.0 Hours Learn firsthand from Australia’s leading authority on infection prevention and control in dentistry about recent changes in infection control that have come in over the past 12 months. This paid online learning program spans 27 video modules watched on-demand over more than 7 hours.

Watch hundreds of videos on-demand for FREE at www.dentevents.tv

16 eLABORATE

May/June 2021

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spectrum | NEWS

M1 Compact Line Milling Unit from Zirkonzahn saves space and time while producing excellent results

T

he M1 Compact Line Milling Unit developed

by Zirkonzahn, with its various models, takes account of the modern laboratory’s differentiated and clear requirements both in terms of milling results and practical logistic handling.

The development of the compact line is based on the proven M5 milling unit technology and is available in several versions in order to meet several laboratories’ requirements. You only buy and pay for what you really need, no more.

The M1 Compact Line includes four models: M1 SOFT, M1 WET, M1 WET HEAVY METAL and M1 ABUTMENT. The versions M1 SOFT, M1 WET as well as M1 WET HEAVY METAL are respectively provided with the intelligent five-axis orbit technology. This means that milling is possible at any conceivable work piece position: even undercuts and diverging abutments are processed in a simple and fast way. The machines differ with regard to the materials’ processing.

18 eLABORATE

With the M1 SOFT milling unit all soft materials, such as Prettau® Zirconia, zirconia Prettau Anterior® or ICE Zirkon Translucent, pre-sintered aluminium oxide, resins, wax, wood or even sinter metal can be milled. The M1 WET milling unit also incorporates a wet processing function, which allows grinding not only soft materials but also glass ceramics. The wet and dry processing of soft as well as of hard materials (for instance, titanium and chrome-cobalt) does not represent a problem for the M1 WET HEAVY METAL milling unit: the orbit built on four bearings and its high-torque milling spindle provide extra stability, which is essential for the milling of hard alloys. The four-axis M1 ABUTMENT milling unit can instead process precast titanium abutments (Raw-Abutments®) as well as glass ceramics and composites.

The M1 Compact Line Milling Unit is particularly compact and space saving (47.7 x 69.3 x 61.3 cm). It is characterised by its extreme short milling time thanks to the fast engines. It can be combined in an optimal way with Zirkonzahn’s scanners and the user-friendly Zirkonzahn Software.

May/June 2021

M1 WET HEAVY METAL MILLING UNIT COMPACT, FAST AND PRECISE MILLING UNIT WITH INTEGRATED WET PROCESSING FUNCTION -

Computer-controlled 5+1 axes simultaneous milling technology

-

Ideal for milling hard metals such as titanium and chrome-cobalt

-

Processing of all common dental materials. With a special support, also Raw-Abutments® can be milled (precast, individual titanium abutment blanks)

-

Tool magazine with 8 burs slots and with tool changer function

-

Can be equipped with the Ioniser (optional), a device for electrostatic discharge of resin shavings for more cleanliness during resin milling

Alphabond Dental Pty Ltd – T +61 2 9417 6660 – stan@alphabond.com.au – www.alphabond.com.au Zirkonzahn Worldwide – T +39 0474 066 680 – info@zirkonzahn.com – www.zirkonzahn.com

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 cad | CAM

prosthetic | TECHNIQUES

READ ME FOR CPD

READ ME FOR

CPD

Figure 1. Kryptonite disk for milling.

Kryptonite: The new avenger in PMMA

By Terence Whitty

P

rosthetic teeth used in denture manufacturing are made from various materials such as Polymethyl Methacralate (PMMA), simply known as acrylic, composite resin, ceramic-filled composite resin and porcelain to name the main groups. Porcelain was traditionally very popular but is rarely used nowadays. The aesthetics and wear characteristics of the other groups have reached a level whereby they have become the favoured choices based on their greater flexibility and ease of handling.

The most popular denture teeth today are made from PMMA and this polymer is well known to us all, having been used in dentistry for more than 75 years. First introduced in 1937 as a denture base material, it was not quickly embraced as a replacement for vulcanised rubber, aka “vulcanite”. However, times changed.

PMMA is now used for denture bases and teeth, special trays, orthodontic appliances, splints, surgical guides, temporaries and a multitude of other dental applications.

Even with the advent of digitally designed and manufactured dentures, PMMA is still widely seen as the material of choice. This is both because of its extensive acceptance in traditionally made dentures and its suitability for use in the digital manufacturing workflow.

As an aside, whilst the 3D printing of dentures is slowly gathering momentum and will no doubt become mainstream one day, the limiting factor at present is that there is no material currently available that can realistically match the aesthetics of layered PMMA. At best, 3D-printed teeth are a monochromatic block of a single colour. Adding composite resin to printed dentures can start to bridge the aesthetics gap, however this takes a lot of manual labour time. 3D printed teeth can vary in translucency based on thickness which can give it some “life”, but PMMA remains the material of choice for great looking prosthetic tooth.

To this end, Kryptonite, a new product recently released shows great promise of becoming the material of choice for CAD/CAM denture teeth and temporaries.

24 eLABORATE

READ THE ARTICLES AND ANSWER THE QUESTIONS ONLINE

May/June 2021

Digital dentures with VITA VIONIC VIGO: A small tooth with a big effect!

Increase hardware and software utilisation with full dentures

By Darius Northey

S

ometimes, just one small change is all it takes to make a decisive difference in a new technology.

Up to now, digital dentures have had a reputation for being inconvenient and costly. Research and development have put an end to these past concerns and are focused on further optimising the digital workflow for denture fabrication.

Recently, a new and long-awaited technology was made available: the ready-to-use tooth for digital dentures.

A welcome arrival in everyday digital lab processes

he advantages of digital technology were lost with many systems when it came to joining together teeth and denture bases. Teeth had to be fitted and conditioned for extensive and complicated polymerisation. This could involve a considerable amount of reworking and loss of occlusal precision, which

T

previously acted as a kind of analog brake for the digital denture workflow. The VITA VIONIC DD FRAME material system first made a name for itself with its precise fit between the base and individual denture teeth, which enabled elegant and fast adhesive cementation. However, the teeth still had to be individually adjusted, cleaned and conditioned cervically and basally in the digital workflow. This procedure will certainly be the method of choice in the future for combination and partial dentures with space-demanding framework structures under the denture teeth.

The VITA VIONIC VIGO ready-to-use tooth is optimised for the digital workflow. Since the market launch of VITA VIONIC VIGO’s intelligent dentistry, all that needs to happen is to remove it from the blister pack, bond it into the cavities of the milled or printed denture base and that’s it! The following clinical case study shows just how big the impact of VITA VIONIC VIGO has been in advancing digital dentures for all common open CAM and 3D printing systems and in paving the way for everyday use in digital labs.

30 eLABORATE

May/June 2021

Question 1. The most popular teeth used in dentures today are made from...

Question 6. One long awaited technology in Digital Dentures has arrived, it is:

a. Bone b. Porcelain c. PMMA d. Composite

a. 3D printing b. Milling c. The ready to use tooth for digital dentures d. PFM crowns

Question 2. At best, 3D printed teeth are...

Question 7. One of the major obstacles for manufacturing digital dentures is...

a. Monochromatic. b. Super-translucent. c. Opaque. d. Not suitable for dentures.

Question 3. How many layers does Kryptonite have? a. 6 b. 12 c. 14 d. 17 Question 4. Strength of dental materials is generally defined as... a. Resistance to abrasion b. Resistance to twisting c. Resistance to fracture d. Resistance is futile Question 5. One big advantage when CAD designing and milling teeth from Kryptonite is... a. You can design the teeth to fit within the edentulous space perfectly. b. The teeth will look more lifelike than real teeth. c. The teeth are harder than real teeth. d. The teeth will look monochromatic.

a. The Bite Registration. b. Joining the teeth and the denture base. c. CAD Design. d. 3D Printing.

Question 8. Vita Vigo Vionic teeth are based on... a. Lingualised Occlusion Concept. b. Pierre Fauchard’s teeth libraries. c. Olympic branded teeth. d. Transverse expanded maxillary concept.

Question 9. For the try-in... a. Normal wax was used. b. Shellac bases were used. c. 3D Printed monoblock denture. d. There was no try in needed.

Question 10. After sandblasting the teeth... a. Do not clean. b. Clean with Isopropyl Alcohol. c. Cut away ridge lap before placing in socket. d. Use super glue to bond to the base.

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 2021 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.

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cad | CAM

READ ME FOR CPD

Figure 1. Kryptonite disk for milling.

Kryptonite: The new avenger in PMMA

By Terence Whitty

P

rosthetic teeth used in denture manufacturing are made from various materials such as Polymethyl Methacralate (PMMA), simply known as acrylic, composite resin, ceramic-filled composite resin and porcelain to name the main groups. Porcelain was traditionally very popular but is rarely used nowadays. The aesthetics and wear characteristics of the other groups have reached a level whereby they have become the favoured choices based on their greater flexibility and ease of handling.

The most popular denture teeth today are made from PMMA and this polymer is well known to us all, having been used in dentistry for more than 75 years. First introduced in 1937 as a denture base material, it was not quickly embraced as a replacement for vulcanised rubber, aka “vulcanite”. However, times changed.

PMMA is now used for denture bases and teeth, special trays, orthodontic appliances, splints, surgical guides, temporaries and a multitude of other dental applications.

24 eLABORATE

Even with the advent of digitally designed and manufactured dentures, PMMA is still widely seen as the material of choice. This is both because of its extensive acceptance in traditionally made dentures and its suitability for use in the digital manufacturing workflow.

As an aside, whilst the 3D printing of dentures is slowly gathering momentum and will no doubt become mainstream one day, the limiting factor at present is that there is no material currently available that can realistically match the aesthetics of layered PMMA. At best, 3D-printed teeth are a monochromatic block of a single colour. Adding composite resin to printed dentures can start to bridge the aesthetics gap, however this takes a lot of manual labour time. 3D printed teeth can vary in translucency based on thickness which can give it some “life”, but PMMA remains the material of choice for great looking prosthetic tooth.

To this end, Kryptonite, a new product recently released shows great promise of becoming the material of choice for CAD/CAM denture teeth and temporaries.

May/June 2021

cad | CAM

Figure 2. Milling Kryptonite on a DG Shape 52DCi.

Figure 3. Milled full arch teeth for a lower denture.

Figure 5. Made from 17 layers, Kryptonite give a beautiful gradient and translucency.

Figure 4. Ridge lap can easily be reduced with milled teeth.

Figure 6. Incisal translucency.

Kryptonite is a very special material; it’s a high impact PMMA made up of an astounding 17 coloured layers. To put that into perspective, most disks on the market are made from 4-6 coloured layers so you would expect Kryptonite to look amazing and it does! During the manufacturing process, 17 individual layers are pressed together to form a disk ready to place in your favourite mill; it’s that easy.

The strength and hardness of PMMA are important properties that are often arbitrarily quoted in numbers that can be confusing.

Strength is usually related to resistance to fracture and hardness is a property defined as the resistance to permanent surface indentation. Sufficient hardness ensures that in-service scratching, both from mastication and abrasion, is kept to a minimum. You don’t want a soft PMMA as that equates in the real world to fast wearing denture teeth!

Figure 7. Blue background demonstrates the gradient and translucency well.

May/June 2021

eLABORATE

25

cad | CAM

Figure 8. 3D printed teeth are monochromatic and lifeless.

Figure 9. Comparison: Top Kryptonite; Bottom 3D printed teeth - you decide.

Figure 10. 3D-printed denture base, milled Kryptonite teeth.

Figure 11. 3D-printed denture base, 3D-printed teeth.

Figure 12. Milled temporary.

Figure 13. Temporary bridge on model.

The good news here is that when compared to other materials in the same class, Kryptonite come up trumps in strength and hardness. Please refer to the comparison in Table 1.

Kryptonite works well when manufacturing custom teeth for full and partial dentures and also can be used for implant supported “hybrids” as you can accurately

26 eLABORATE

create the teeth you need, rather than just getting the tooth “off the card” that is close but not exactly what you need.

Teeth for full dentures are easily made using Kryptonite and CAD software from 3Shape or exocad allow you to create files ready to mill. The teeth are joined together in software for ease of handling and once milled, can be set in a milled or

printed denture base. One major advantage milled teeth have over “carded” teeth when manufacturing digital dentures is that you don’t have to worry about trimming the ridge lap because you can design the teeth within the CAD software to perfectly fit in the edentulous space without interference, even without a lot of vertical height.

May/June 2021

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cad | CAM Table 1. Comparison of PMMA denture discs available in Australia Kryptonite DDD

Competitor 1

Competitor 2

Competitor 3

Number of Layers

17 Multi-Layers

5 Layers

4 Layers

1 Layer

Flexural Strength (MPa)

110

Min 114 MPa

≥80

≥65

Water Sorption (μg/mm³)

6.9

≤40

≤32

Solubility (μg/mm³)

0.7

≤7.5

≤1.6

Vickers hardness (MPa)

Min 25 HV

Min 26 HV

E-Module

2600 MPA

Min 2771 MPA BL3, A1, A2, A3, A3.5, B1, B3, C2, D2

4 basic shades of pink

Available Shades

A1, A2, A3, A3.5, A4, B1, B2, C1, C2, D2, D3 and BL3

A1, A2, A3, B1

Figure 14. Designed custom teeth in exocad.

Figure 15. Small custom teeth are easily designed in exocad.

I used Kryptonite recently for a partial denture case with congenital missing upper laterals where the spaces where kept open during orthodontic treatment for later implant placement. Unfortunately the spaces had closed over time and were now very narrow and the patient was undergoing aligner therapy. These types of cases are always challenging to get the right aesthetics as the bone and tissues in the area is often inadequate and does not have the desired support or shape.

In this case, I used exocad CAD software to design teeth to perfectly fit the edentulous space and create the perfect ridge lap, both labially and lingually. Once milled, the teeth fit like a dream and I don’t have to worry about spending valuable time trimming teeth down to get a less than optimal result. The teeth are made exactly for the space and they look amazing.

Provisionals also look great with Kryptonite but don’t make them look too good, they are provisionals after all!

Kryptonite comes in popular VITA shades and various thicknesses for any milling unit that accepts 98mm disks.

Kryptonite is now available in Australia from Wisbey Dental.

Purchase online at www.wisbeydentalshop.com

About the author

Figure 16. Teeth ready to mill in Kryptonite.

28 eLABORATE

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.

May/June 2021

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Visit www.dentevents.com Published by Main Street Publishing Pty Ltd • PO Box 586 Cammeray NSW 2062 • Call (02) 9929 1900

prosthetic | TECHNIQUES

READ ME FOR

CPD

Digital dentures with VITA VIONIC VIGO: A small tooth with a big effect!

Increase hardware and software utilisation with full dentures

By Darius Northey

S

ometimes, just one small change is all it takes to make a decisive difference in a new technology.

Up to now, digital dentures have had a reputation for being inconvenient and costly. Research and development have put an end to these past concerns and are focused on further optimising the digital workflow for denture fabrication.

Recently, a new and long-awaited technology was made available: the ready-to-use tooth for digital dentures.

A welcome arrival in everyday digital lab processes

he advantages of digital technology were lost with many systems when it came to joining together teeth and denture bases. Teeth had to be fitted and conditioned for extensive and complicated polymerisation. This could involve a considerable amount of reworking and loss of occlusal precision, which

T

30 eLABORATE

previously acted as a kind of analog brake for the digital denture workflow. The VITA VIONIC DD FRAME material system first made a name for itself with its precise fit between the base and individual denture teeth, which enabled elegant and fast adhesive cementation. However, the teeth still had to be individually adjusted, cleaned and conditioned cervically and basally in the digital workflow. This procedure will certainly be the method of choice in the future for combination and partial dentures with space-demanding framework structures under the denture teeth.

The VITA VIONIC VIGO ready-to-use tooth is optimised for the digital workflow. Since the market launch of VITA VIONIC VIGO’s intelligent dentistry, all that needs to happen is to remove it from the blister pack, bond it into the cavities of the milled or printed denture base and that’s it! The following clinical case study shows just how big the impact of VITA VIONIC VIGO has been in advancing digital dentures for all common open CAM and 3D printing systems and in paving the way for everyday use in digital labs.

May/June 2021

VITA VIONIC VIGO® Expand your possibilities

Get more from your CAM system with VITA VIONIC VIGO, the smart tooth for digital dentures at the touch of a button

Learn more at: www.vita-vionic.com

VITA – perfect match.

prosthetic | TECHNIQUES

Figures 1 and 2. The masticatory areas of the previous dentures were misaligned.

The incisal edge did not match the shape of the lips.

Figure 3. The occlusion was heavily eroded and the bite height had dropped significantly.

Figure 4. Individual trays were fabricated for the mucodynamic impression.

Figure 5. Mucodynamic preforming with Medium Body A silicone.

Figure 6. Bite templates with wax walls were fabricated on master models.

Figure 7. During the jaw relation determination, the bite blocks were adjusted and coded.

Case study 77-year-old patient presented at the practice with an extremely worn full denture restoration that was more than 20 years old. He complained that he could no longer chew properly, due to his eroded posterior teeth and that he no longer liked the appearance of his dentures. A clinical examination revealed an occlusal plane tilted upward and to the left. The denture teeth appeared lifeless and opaque. Over time, the occlusal relief had become severely abraded. Aggressive cleaning agents had left behind additional damage. The vertical dimension had sunk, due to heavy wear. Together with the patient, the decision was made for a new full denture restoration. In the process, the advantages

A

32 eLABORATE

of digital denture fabrication in the laboratory were to be fully explored after the clinical steps. For functionality and aesthetics, the VITA VIONIC VIGO “digital” denture tooth was chosen, which has all the high-quality properties of a filled denture tooth.

It is based on a lingualised occlusal concept that allows the patient freedom in centric and eccentric movements.

Analog precision steps uring the first appointment, anatomical alginate impressions of the upper and lower jaw were taken as the basis for fabricating individual impression trays. The lower jaw denture was also soft relined to stabilise the soft tissue for the

D

May/June 2021

prosthetic | TECHNIQUES

Figures 8-10. The models were digitised individually and in relation to the jaw in the laboratory scanner.

Figure 11a-b. The virtual setup of VITA VIONIC VIGO and the anatomical design of the denture bases in the design software.

Figure 12. A white monoblock was prepared using the additive method for the try-in.

Figure 13. Function, phonetics and aesthetics were checked during the try-in.

mucodynamic impression that was scheduled for later. Using the individual impression trays, the mucodynamic impressions in the upper and lower jaw were first taken with Medium Body and then further refined with a more viscous Light Body A silicone.

The impressions were cast with super hard plaster and bite registrations with wax walls were made on the finished models.

With these, the centric jaw relation was registered on the patient and the vertical dimension was restored. The smile line, midline and canine position were also marked on the upper wax wall so that this information could be transferred to the digital workflow. In general, the highest precision is required for the analog steps. They are the foundation for the final digital workflow in the laboratory.

Figure 14. The incisal edge harmonised with the shape of the lips.

May/June 2021

eLABORATE

33

prosthetic | TECHNIQUES The digital workflow he master models were first digitised individually using a laboratory scanner, followed by both models with bite registrations in relation to the jaw in order to be able to design the full denture restorations in the 3Shape CAD software (3Shape, Denmark) on this virtual foundation.

The model analysis was performed beforehand in order to implement all the relevant information for the tooth positioning.

The VITA VIONIC VIGO was then selected as the denture tooth and digitally aligned, according to the virtual wax walls.

After the targeted individualisation of each tooth position in the front of the upper and lower jaw, the insertion direction and the functional edges were determined virtually using a range of design tools and the denture bases were designed.

For the try-in, a white monoblock was fabricated using additive manufacturing with the Asiga MAX 3D printer (Asiga, Australia) to check the aesthetic effects and phonetics, as well as occlusal functionality in situ.

The patient and practitioner were satisfied with the interim results, allowing for the definitive denture base to be exported from the design software to the 3D printer software.

The base was aligned in 3D Sprint Software V2.13 and support structures were added virtually to achieve accurate print results from the Opaque Pink 3D+ denture base material using the NextDent 5100 3D printer (all 3D Systems, USA). After printing, the support structures were removed and the denture bases were pre-polished to avoid unintentionally reducing the natural surface texture of the VITA VIONIC VIGO during the light final polishing after adhesive bonding of the teeth.

All teeth fit precisely into the alveoli and were secure against rotation. After the brief try-in, they were sandblasted with aluminum oxide and cleaned with isopropyl alcohol.

T

Figure 15. The denture bases virtually aligned for printing with support structures.

C

M

Y

CM

MY

CY

CMY

K

Efficient finalisation he initial situation before the grand finale: The VITA VIONIC VIGO denture teeth are already pre-conditioned, i.e. blasted in the cervical and neck area in their blister packaging. There is no need for occlusal and cervical tooth modification or cleaning and conditioning of each individual tooth.

In this case, many systems work here with a snug fit for blocked dental arches or complex repositioning of the individual teeth, which must be compensated with polymer.

With VITA VIONIC VIGO, each individual tooth has a precise fit according to the lock-and-key principle, enabling simple and clean bonding using the VITA VIONIC BOND bonding system. The two-component adhesive is simply applied in wafer-thin layers to the alveolus and cervical area of the VITA VIONIC VIGO using a microbrush, and the tooth is positioned accordingly.

After curing for 30 minutes, the dentures were placed in the pressure pot for 20 minutes at 55 degrees Celsius and 2 bar pressure for polymerisation.

Finally, the papillae were slightly recontoured in specific areas using the flowing and light-curing veneering composites VITA VM LC flow GINGIVA 4 and 5. Further anatomical individualisation of the labial shield was omitted, due to the deep smile line. Done!

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34 eLABORATE

Figure 16. The print results of the upper jaw base after removal from the 3D printer.

Figure 17. The prepared and conditioned denture bases.

May/June 2021

Virtual CAD/CAM Job Management for YOUR Milling Devices

DWINDEX 2 improves your CAD/CAM production boasting a robust virtual dashboard accessible with your smart device and remote PC. The virtual dashboard offers a 24-hour production graph displaying the daily output on each connected device, allowing users to remotely monitor the progress of their milling devices both during and after work hours.

Live Dashboard Provides data for the management of materials, tools, and jobs, and offers laboratories additional data to introduce new efficiencies.

Remote Monitoring Stay updated with remote monitoring job management and live views with camera capability (available seperately).

Compatible with all the latest DWX devices

For more information and to register for DWINDEX2, visit www.rolanddg.com.au/dwindex2

prosthetic | TECHNIQUES

Figures 18-20. The teeth were joined precisely and easily according to the modular principle, which can be done by any technician.

Figure 21. The situation immediately after bonding the front of the upper jaw.

Figure 22. The papilla area on tooth 12 was recontoured in specific areas.

Figure 23. The light-curing veneering composite VITA VM LC flow was used for individualisation.

Figure 24. The completed full denture restoration after careful final polishing.

36 eLABORATE

May/June 2021

A career to get your teeth into

Be a dental technician with one of the most advanced labs in the country.

As pioneers of digital dentistry, you’ll be using the latest technology to help deliver cutting-edge solutions. So if advancing your career as part of an awesome, highlyexperienced team sounds like something you’d like to chew over, get in touch.

Email hr@andent.com or find visit andent.com/careers

We currently have positions available in our state-of-the-art Melbourne laboratory for dental technicians.

Specialising in: Plaster | Ceramics | Thermoforming

prosthetic | TECHNIQUES

Figure 25. The setup in the front is individualised and playful.

Figure 26. Red and white structures in harmony.

Full dentures in everyday digital lab processes ry-in of the final dentures revealed proper fit and functional occlusion. No grinding steps were necessary. The patient was delighted with the vibrant 3-dimensional layering and natural surface texture of VITA VIONIC VIGO. Further development and optimisation of the denture tooth to meet the needs of the digital workflow have led to a significant simplification in the process and an increase in efficiency for the fabrication of full dentures.

The lab staff can devote their time to other tasks while the denture bases are being produced inexpensively in a 3D printer or milling machine. The precise fit and preconditioning of VITA VIONIC VIGO allows full dentures to be completed according to a simple and fast modular principle. The “digital” denture tooth represents true added value for digital labs and allows them to utilise their existing hardware and software even more efficiently. Full dentures are now a viable option for everyday digital lab processes.

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Figure 28. The incisal edge harmonises with the shape of the lips.

Figure 27. The lingualised occlusion provides centric and eccentric freedom.

Figure 29. The VITA VIONIC VIGO denture teeth look completely natural.

About the author Darius Northey graduated as a Dental Technician in 1993 after working in the family business for many years. In 1997, he established his own dental laboratory in Sydney, Australia and later completed the Advanced Diploma of Dental Prosthetics to graduate as a dental prosthetist. He established Jade Dental Laboratory Pty Ltd with his business partner/ceramist Justin Thompson in Buderim on the Sunshine Coast, Australia in 2006. The Laboratory has a denture clinic on site and also another practice on Bribie Island, Queensland, Australia. They employ 11 staff and are a full service lab. Darius specialises in acrylic cases, working with dentists and directly with patients. He has a strong interest in furthering his education and attends regular courses and seminars. He lectures in Australia and overseas on implant over dentures and CAD/CAM bars.

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May/June 2021

thermoforming | TECHNIQUES

Using granules

By Peter Herring, Adv Dip Dent Tech, ACCDP

U

sing granules to position models is not a new feature in the thermoforming world, but it does tend to polarize people distinctly into two factions users and non-users. From conversations with the people we’ve worked with, it becomes clear that people simply either love granules or hate them.

For sure, using granules requires learning a new set of skills and a different mindset but the ongoing benefits far out way the time it takes to become familiar with manipulating the granulate medium. Once mastered, it makes little sense to revert to using the model trimmer to specifically prepare models for thermoforming.

For height and angulation adjustment

n their most fundamental application, granules save the time and effort of trimming models to the desired height and angulation for thermoforming. But apart from this, using granules this way benefits us by leaving the model intact which then also makes it much easier to remove the thermoformed foil for finishing. We also gain more precise control of the area to be thermoformed over with granules as we are free to follow the contours of the anatomy rather than be restricted to the plane of a flat model base and forming to this.

I

Figures 1-2. The most obvious and common use for granules - The model can be quickly embedded to the optimum height and angulation without trimming.

For varying material thicknesses s an example, if we compare, say, an occlusal splint to a bleach tray, we have different requirements for palatal thickness. For the bleach tray, it is desirable to maintain as even and greatest material thickness as possible over the appliance for stability of the thin material. In this case, we can embed the model to the maximum degree (the appliance extension plus material to allow for finishing) and reduce the materials thinning from stretching to a minimum.

With an occlusal splint, we usually want the material thickness to be maintained on the buccal and occlusal surfaces and for

A

Figures 3-4. Differential positioning of the granules allows us to manipulate the thermoformed foil and produce varying degrees of material thickness across the same foil. patient comfort, we want a reduced thickness in the palatal region. To help achieve this, we can embed the model to within 4-5mm of the finished appliance on the buccal and labial region and then clear the palatal area. This will cause the material to stretch and thin as it forms into the palatal area requiring a lot less work to achieve a comfortable profile here, yet still maintain the occlusal and labial thicknesses.

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.

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May/June 2021

For selectively thermoforming over areas hen forming one foil over another, say, when producing triple laminated mouthguards or bracket transfer trays, we do not want the second layer to form over the entire first layer and so we can quickly position the granules to cover the areas of the first layer which we want to remain free of the subsequent layer and thermoform over this.

W

Figures 5-6. Here we’re using granules to “block out” the areas where we do not want the second “hard” layer of a laminated mouthguard to bond. This makes for accurate placement and fast finishing.

Controlling granules he main resistance towards using granules that we encounter usually relates to the issue of controlling them, i.e., they go everywhere.

But four simple tools are all that are needed to work effectively and cleanly with granules: the lipped tray, scoop, on-off magnet and brush. With the correct tools in place, using granules becomes second nature and easy.

The art of using granules is to work between the machine and the open tray so few granules “escape”. Then we can either pour granules from the lipped tray or use the scoop to administer the quantity we require. The brush is then used to refine and shape the granule position around the model and form the pot and the on-off magnet makes it easy to collect any errant granules and return them to the tray.

Once these skills and back and forth work flow is acquired, you have a much quicker and more flexible method for positioning and preparing models for thermoforming at your disposal.

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Figure 7. Four simple tools to tame granules: Lipped Tray, Scoop, On-Off Magnet and Brush.

hygiene for dental appliances removes plaque & mineral deposits removes odours fresh and clean splints prevents discolouring safe for all appliances

Contact: telephone toll free 1800 242 634 - fax +61 8 9388 0502 email info@erkodent.com.au - online shop www.erkodent.com.au May/June 2021

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.

Sirio high-performance sandblasters

Sirio Diamond Disc Model Trimmer This compact wet/dry dental model trimmer is built entirely of reinforced plastic which makes it resistant to water, corrosion and shocks caused during operation. It contains a very powerful motor (1000W - 2800 rpm) with high torque combined with

A Sirio sandblaster is a highperformance sandblaster that’s extremely easy to use and operated with a foot control.

It comes with a 12V internal light, a pressure regulator and an external aspirator connection. Weighing in at 16 kgs, this robust yet compact sandblaster might just be the perfect addition to your dental

laboratory. It comes complete with two tanks, one 50-100 µm and one 10-250 µm tank. Also available in one tank, and three tank versions upon request.

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

Sirio Hertz Vibrators in 3 sizes

The HERTZ Vibrator is a powerful and reliable tool which guarantees consistent power delivery, adjustable by an electronic circuit. All you need to do to change the vibration intensity is press the “up and down arrows” on the front panel. A variable intensity up to 9 appears on the display indicator. In-built and assembled in accordance with standard safety rules, the vibrator includes a protection fuse, a standard plug and a green light switch. Its rubber

42 eLABORATE

plane can be easily removed for cleaning, which can be done with steam, thanks to the high thermal and mechanical resistance of the rubber. This vibrator is noise-free and guarantees a high steadiness by means of a perfect vertical movement.

It is available in three sizes.

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

an attractive design making it the ideal choice for every working environment. Included with the trimmer is a water pipe which you can easily connect to your water supply making it a wet/dry trimmer and increasing its functionality.

Available: Alphabond Dental Tel: (02) 9417-6660 Tel: 1800-643-477 info@alphabond.com.au www.alphabond.com.au

Yeti Occlusion Spray Yeti Occlusion Spray is designed to assist in the recognition of high spots. It features targeted spraying and does not blob. Yeti Occlusion Spray is 100% water soluble and can be easily washed off from sealed plaster surfaces (it should be washed off before porcelain firing or investing!).

Yeti Occlusion Spray adheres to metal, ceramics, plaster and synthetics. It’s environmentally friendly: a mixture of compressed gas that is not harmful to the ozone layer.

Yeti Occlusion Spray can also be used as a scan spray!

Available: Alphabond Dental Tel: (02) 9417-6660 Tel: 1800-643-477 info@alphabond.com.au www.alphabond.com.au

May/June 2021

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