14 minute read
CPD CENTRE
infection | CONTROL
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infection | CONTROL
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A-dec’s dental unit waterline testing service can provide accurate results in just minutes.
Test now to protect dental waterlines
By David Petrikas
A-dec dealers have stepped in to help dental practices with a new end-toend waterline maintenance approach and routine waterline testing service.
A-dec Product Marketing Manager, Shal Hafiz, said it was important to ensure dental unit waterlines remained uncontaminated to avoid unpleasant experiences with poor water quality in clinics and potential health risks for patients and staff.
He said dental unit waterlines needed periodic maintenance to ensure they met ADA guidelines and that a systematic approach was the only way of ensuring ongoing dental unit waterline quality.
“Recently, more A-dec dealers have begun offering water line testing as part of A-dec’s recommended ‘Maintain / Monitor / Shock’ regime, which provides peace of mind to all dental practices that their waterlines are kept within safe limits.”
The rapid and accurate water testing system uses state-of-theart equipment to detect contamination at very low levels, so that the required treatment regime can be implemented to maintain or correct water quality issues.
The testing is part of the “A-dec 360 Maintenance” approach which includes regular waterline maintenance, backed up by waterline quality monitoring and periodic shock treatment.
Shock treatment
Mr Hafiz said daily waterline maintenance was easy with a proven solution like A-dec ICX tablets for self-contained waterline bottles, however, it was also important to monitor water quality and apply a periodic shock treatment as per guidelines.
“A-dec ICX Renew shock treatment, launched in May this year, is the perfect complement to A-dec’s self-contained waterline system to ensure the highest quality water is delivered to patients.”
ICX Renew is an odourless formula that clears deposits and contamination which can build up over time, without harming plastic tubing or corroding dental unit components, unlike some harsh treatments.
The latest ADA Infection Control Guidelines suggest a shock treatment if CFU (colony forming units) reach 200 CFU/mL.
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Question 1. The Water Control System analyses DUWL biofilm in: a. 60 seconds b. 2 minutes c. 5 minutes d. 15 minutes
Question 2. Once mixed, the ICX Renew solution is: a. Clear b. Blue c. Pink d. Cloudy white
Question 3. ADA guidelines recommend action when the bacterial load in dental unit water reaches: a. 100 CFU/mL b. 200 CFU/mL c. 300 CFU/mL d. 400 CFU/mL
Question 4. When high bacterial counts are found, waterlines need to undergo shock treatments using: a. ICX Renew b. ICX c. Distilled water d. Chlorhexidine gluconate
Question 5. ICX and ICX Renew are non-corrosive and will not corrode or clog waterlines or harm dental tubing, diaphragms, ‘O’ rings and other soft components: a. True b. False
UVC light from 200-230 nm: A new way to improve air quality?
By Emeritus Professor Laurence J. Walsh AO
22 oral|hygiene The problems of contamination of the dental working environment with particles of patient origin are well-known and similar concerns exist for operating theatres, especially when more complex procedures such as organ transplantation and the placement of joint prostheses are being undertaken.
The literature indicates that particular problems around contaminated material in the air occur during procedures such as ultrasonic scaling and the use of air powder polishing devices and high-speed air turbine drills.1-3 These problems are magnified when the operatory is small in size and has limited fresh air exchange through the air-conditioning system, hence allowing concentrations of particulates in the air to increase over time in bursts, as various procedures are undertaken.
As well as aerosols generated during procedures, there are also issues with the movement of people in and out of rooms. This issue has been well documented in operating theatres, where the movement of personnel and the associated opening and closing of doors greatly increases aerosol concentrations.
While common sense would suggest that a simple approach using high efficiency particle air filtration may be highly effective at reducing the concentration of aerosols, to date the literature around this has reported mixed results, with real world studies involving aerosol sensors showing no benefit from area HEPA filters in the dental operatory.4
On the other hand, recent literature supports the value of high volume evacuation (HVE) as an effective mitigation strategy that reduces aerosol concentrations, particularly when used with a wide bore tip and especially when that tip has a conical end that increases the surface area at the collecting end.2-4
July/August 2022
Question 6. Which wavelength of light causes significant cellular and molecular injury, including damage to DNA?: a. 200 nm b. 207 nm c. 222 nm d. 254 nm e. 289 nm
Question 7. Particular wavelengths of light that are of interest in infection control are 207 nm and 222 nm because: a. Light in this spectral range can be generated cheaply by LEDs. b. Elemental mercury is not required in the light source. c. It can kill bacteria without causing harm to living tissue in humans. d. All of the above.
Question 8. Ultraviolet lamps emit light that... a. Is carcinogenic. b. Causes keratitis. c. Causes cataracts. d. Damages your DNA. e. All of the above.
Question 9. Light from 200 to 230 nm is... a. Unable to penetrate through the stratum corneum of the skin. b. Unable to penetrate through the cell membrane of a human cell. c. Readily able to penetrate bacteria and viruses because of their much smaller size. d. All of the above.
Question 10. UVC light at 222 nm has been shown to kill: a. Influenza viruses. b. Coronaviruses including SARS-CoV-2. c. Multi-drug resistant bacteria. d. All of the above.
clinical | EXCELLENCE
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Shining light on common misconceptions about the role of light in dental bleaching
By Maria Lucas and Laurence J. Walsh AO
This article explores the role of light in dental bleaching from several different perspectives, emphasising the translation from the scientific principles to the explanation given to patients.
Clinicians typically learn information about bleaching techniques and the role of light both from continuing professional education courses and from training materials provided by manufacturers for their individual systems. This represents the beginning of a journey rather than its entirety.
Let us begin with the dental clinician’s perspective (from Oral Health Therapist Maria Lucas).
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Why clinicians choose to use a system that also has a light
• An important reason why some clinicians may choose to use a light is to remain comparable and on trend with what patients are asking for and what patients feel may work best for them. Patient perception is important to consider when running a successful dental practice; • The introduction of initial “in office” power bleaching methods - Zoom, the old “BriteSmile” and other laser or
LED devices were sold to dentists/business owners on the presumption that the “light” did the work to lighten and brighten the teeth;
July/August 2022
Question 11. Using an LED array in combination with a suitable whitening gel shows a gain in the effectiveness of the treatment in the order of: a. 8-10% b. 12-20% c. 24-28% d. 30-45% e. 50-62%
Question 12. Teeth are relatively transparent to wavelengths... a. From visible green through to the near infrared region. b. In the far ultraviolet range. c. In the mid ultraviolet range. d. All of the above.
Question 13. Warming a bleaching gel with light facilitates the breakdown of hydrogen peroxide and can improve the overall bleaching effect that is gained: a. True b. False
Question 14. Examples of whitening systems which use photodegradation are the... a. HiSmile Vio 405 nm violet light. b. Smartbleach™ 535 nm visible green LED array. c. Deka Smartlite™ 532 nm KTP laser. d. All of the above.
Question 15. Studies show that violet light has no effect in reducing yellow stains unless an intervening oxidant is used like hydrogen peroxide... a. True b. False
clinical | EXCELLENCE
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Maintenance checklist for ultrasonic inserts
How to properly care for your ultrasonic inserts
Did you know an hygienist spends 2 hours per day on average power scaling? With so much usage and often a different insert for many procedures, you must regularly evaluate your inserts to ensure they continue functioning properly.
Ultrasonic inserts combine the power, efficiency and comfort you need to treat a wide range of patients, but they can also be delicate. This article provides a checklist to help you properly use, care for, maintain and therefore extend the useful life of your
Ultrasonic Inserts.
1. Check tip condition
Just like your hand scalers, ultrasonic insert tips wear with use. Worn insert tips can significantly diminish your scaling efficiency. One millimeter of tip loss results in a 25% loss of efficiency. Two millimeters? That’s a 50% loss of efficiency.
When an insert tip is worn, the “sweep” of the instrument is reduced. The insert tip doesn’t travel as far on its optimal path. When using a worn tip, generally more pressure is applied, or generator power is increased, to compensate for the efficiency loss—often leading to patient discomfort and increasing the possibility of tip bending/breakage. When using a worn insert tip, the clinician will likely feel the need to increase the power setting on the generator to facilitate debris removal. However, scaling efficiency will not increase and more heat will be generated, especially if the power setting exceeds the recommendation for the insert tip.
32 oral|hygiene July/August 2022
Question 16. How many days on average does an hygienist spend power scaling? a. 1 hour b. 2 hours c. 3 hours d. 4 hours
Question 17. A 50% loss of efficiency results from a scaler tip that is worn by... a. 0.5 mm b. 1 mm c. 1.5 mm d. 2 mm
Question 18. Handpiece overheating can occur because of... a. Trapped air bubbles. b. A clog in the waterline filter. c. Using more power than is recommended to compensate for worn tips. d. All of the above.
Question 19. Bending or reshaping insert tips... a. Voids the warranty. b. Reduces performance. c. Makes them susceptible to breakage. d. Disrupts the vibration pattern and reduces debris removal. e. All of the above.
Question 20. Applying too much pressure... a. Dampens tip vibration. b. Leads to poor deposit removal. c. Causes operator hand fatigue d. Causes patient discomfort. e. All of the above.
dentevents presents... dentevents presents... Infection Control Infection Control BOOT CAMP 2020 BOOT CAMP BOOT CAMP 2020
ON DEMAND ONLINE LEARNING PROGRAMME ON DEMAND ONLINE LEARNING PROGRAMME 26 VIDEOS - 6+ HOURS OF EDUCATION 26 VIDEOS - 6+ HOURS OF EDUCATION INTERACTIVE Q&A SUPPORT WEBINARS INTERACTIVE Q&A SUPPORT WEBINARS Presented by Professor Laurence J. Walsh AO Presented by Professor Laurence J. Walsh AO
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 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 6 6 months, including the new guidelines from NHMRC (May 2019), Hand Hygiene Australia months, including the new guidelines from NHMRC (May 2019), Hand Hygiene Australia HOURS CPD HOURS CPD (Sept 2019) and the CDNA (Dec 2018) as well as recent changes in Australian Standards (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 will provide a summary and TGA regulations that are relevant to infection control. The course will provide a summary of how those changes interlink with one another. of how those changes interlink with one another. The course will cover practical implementation of the new requirements and what it means for everyday dental The course will cover 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. Bring practice. Hear about the why and the how and keep up-to-date with the changes that are happening. Bring along your questions in writing or in person for one of the Q&A sessions that will be held during the day. along your questions in writing or in person for one of the Q&A sessions that will be held during the day.
COURSE TOPICS COURSE TOPICS
This one day course will cover changes in regulations and guidelines from 2018 to 2020 including: This one day course will cover changes in regulations and guidelines from 2018 to 2020 including: n n Risk-based precautions. Risk-based precautions. n n Hand hygiene and hand care practices. Hand hygiene and hand care practices. n n Addressing common errors in personal protective equipment. Addressing common errors in personal protective equipment. n n Biofilm reduction strategies. Biofilm reduction strategies. n n Efficiency-based measures to improve workflow in instrument reprocessing and patient changeover. Efficiency-based measures to improve workflow in instrument reprocessing and patient changeover. n n Correct operation of mechanical cleaners and steam sterilisers. Correct operation of mechanical cleaners and steam sterilisers. n n Wrapping and batch control identification. Wrapping and batch control identification. n n Requirements for record keeping for instrument reprocessing. Requirements for record keeping for instrument reprocessing. n n Correct use of chemical and biological indicators. Correct use of chemical and biological indicators.
FULL FULL UPDATE! UPDATE! All the changes to All the changes to Infection Control Infection Control Guidelines in Guidelines in 2020 2020
Professor Laurence Walsh AO is a clinically active specialist in special needs den-Professor Laurence Walsh AO is a clinically active specialist in special needs dentistry who is based at the University of Queensland in Brisbane. Laurie has been tistry who is based at the University of Queensland in Brisbane. Laurie has been teaching infection control and clinical microbiology for over 25 years at postgrad-teaching infection control and clinical microbiology for over 25 years at postgraduate level and has been the chief examiner in microbiology for the RACDS for the uate level and has been the chief examiner in microbiology for the RACDS for the past 20 years. He has presented invited courses and lectures on infection control past 20 years. He has presented invited courses and lectures on infection control across Australia and internationally. Laurie has written over 60 articles on infection across Australia and internationally. Laurie has written over 60 articles on infection control and in addition published over 320 journal papers and a further 190 technical reports and control and in addition published over 320 journal papers and a further 190 technical reports and literature reviews. He serves on two committees of Standards Australia (personal protecting equip-literature reviews. He serves on two committees of Standards Australia (personal protecting equipment; and instrument reprocessing) and in recent years has been an adviser to the Communicable ment; and instrument reprocessing) and in recent years has been an adviser to the Communicable Diseases Network of Australia and the Australian Commission on Safety and Quality in Health Care. Diseases Network of Australia and the Australian Commission on Safety and Quality in Health Care. Laurie has been a member of the ADA Infection Control Committee since 1998. He has contributed Laurie has been a member of the ADA Infection Control Committee since 1998. He has contributed to various protocols, guidelines and checklists and manuals used in Australia. to various protocols, guidelines and checklists and manuals used in Australia.
REGISTRATION FEES REGISTRATION FEES
Dentists Dentists $660 inc$660 inc gst gst Others Others $330 inc$330 inc gst gst
n n On-Demand access to 26 Online Learning Videos On-Demand access to 26 Online Learning Videos (Over 6 hours of education). (Over 6 hours of education). n n Online Learning Companion Booklet. Online Learning Companion Booklet. n n Suggested Reading Material Booklet. Suggested Reading Material Booklet. n n Access to regular Q&A Webinar(s). Access to regular Q&A Webinar(s). n n Online Questionnaire to earn 6 Hours of CPD. Online Questionnaire to earn 6 Hours of CPD.
Infection Contol Boot Camp is presented by Dentevents, a division of Main Street Publishing Pty Ltd ABN 74 065 490 655 • www.dentevents.com • info@dentist.com.au Infection Contol Boot Camp 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 • Infection Contol Boot Camp™ and Dentevents™ are trademarks of Main Street Publishing P/L © 2020 Main Street Publishing Pty LtdTel: (02) 9929 1900 • Fax: (02) 9929 1999 • Infection Contol Boot Camp™ and Dentevents™ are trademarks of Main Street Publishing P/L © 2020 Main Street Publishing Pty Ltd
