Times are shown in your local time zone GMT
Ad-blocker Detected - Your browser has an ad-blocker enabled, please disable it to ensure your attendance is not impacted, such as CPD tracking (if relevant). For technical help, contact Support.
The dental office meets the ISO: how to avoid pitfalls when light curing dental resins: which device, which method, which material
Fdi Session (On Demand)
Session Description
The dental office meets the ISO: how to avoid pitfalls when light curing dental resins: which device, which method, which material
Most dental offices will use a light-curing unit many times a day to photocure dental adhesives, resin cements, resin composites, sealants, or orthodontic cements. When purchased, all these products are “unfinished," and their clinical performance depends on how well they are ‘light-cured’ in the mouth. Insufficient curing due to non-suitable techniques, or inadequate light curing units (LCU) will result in insufficient polymerization and in clinical failures with pain, secondary caries or premature restoration loss. This symposium shall advise the clinician how to select the correct technique, the correct instruments, and the necessary protective measures when light curing dental resins.
Learning Objectives
Most dental offices will use a light-curing unit many times a day to photocure dental adhesives, resin cements, resin composites, sealants, or orthodontic cements. When purchased, all these products are “unfinished," and their clinical performance depends on how well they are ‘light-cured’ in the mouth. Insufficient curing due to non-suitable techniques, or inadequate light curing units (LCU) will result in insufficient polymerization and in clinical failures with pain, secondary caries or premature restoration loss. This symposium shall advise the clinician how to select the correct technique, the correct instruments, and the necessary protective measures when light curing dental resins.
Learning Objectives
- The clinical relevance of correct light curing of dental resins
- Common pitfalls in light curing dental resins
- Which light curing unit for which material
- Light curing through indirect materials?
- What safety measures necessary for light curing units?
Dr. Spiro J. Megremis
How ISO Standards Assure Proper Curing of Your Light-Activated Restorative Material - ISO Standards and polymer-based light curing
Does your light curing uni (LCU) match your restorative material? Do you need a curing unit with both blue and violet light? How long do I need to cure? What is my depth of cure? Does my hand held dental radiometer give me the same irradiance value as the curing unit manufacturer states? This presentation answers these questions and more by examining some of the key ISO Standard test methods that manufacturers are required to perform and provide the results for in their instructions for use, and considers how this information can be used to help ensure a successful light-cured restoration.
Learning Objectives
- Determine the amount of time you need to cure for any curing unit/polymer-based restorative material combination, and how positioning of your light-tip and distance between the light-tip and polymer effects this value.
- Do you need a single-peak or multi-peak curing unit for your polymer-based restorative material?
- What is the difference between power and irradiance?
Prof. Richard Price
LCUs are used to generate most of a dentist’s income. Which one should you use and how do you avoid problems? - Light curing units, safety
This presentation will describe how the ability to polymerize resins 'on-demand' has revolutionized dentistry to the point that LCUs are now used to generate large parts of a dentist’s income. What the dentist should look for when purchasing a new LCU and how to correctly use the LCU will be reviewed. The interplay between the power, light tip area, radiant exitance, irradiance, and the beam profile from the LCU will be described. The attendee will be alerted to the dangers of purchasing untested LCUs, the potential ‘blue light hazard’ from LCUs, and the dangers of using Class 4 laser LCUs.
Learning Objectives
- What does a well-constructed LCU can do for the dentist and patient.
- How to select the right LCU for your office. What to avoid.
- How to correctly use the LCU.
- What protective measures should be used.
- How to maintain the LCU.
Prof. Gottfried Schmalz
Are there relevant adverse effects from LCUs for patients and dental personnel? - Do we have to be concerned about “Blue light hazard”
Inadequate use of LCUs may lead (1) to insufficient curing, enhanced monomer elution and increased cytotoxicity or allergy risk; (2) heat damage to the dental pulp or; (3) soft tissue burns. Photosensitivity reactions are rare. Damage to patient’s eyes is unlikely due to the limited exposure, however retinal burns are possible when using high power or laser LCUs. For dental personnel, the cumulative exposure to blue light (430 through 480 nm) from LCUs may result in retinal injury. Exposure may be further enhanced by loupes or microscopes. Therefore, appropriate protective measures are needed to reduce the adverse effects of LCUs.
Learning Objectives
Are there relevant adverse effects from LCUs for patients and dental personnel? - Do we have to be concerned about “Blue light hazard”
Inadequate use of LCUs may lead (1) to insufficient curing, enhanced monomer elution and increased cytotoxicity or allergy risk; (2) heat damage to the dental pulp or; (3) soft tissue burns. Photosensitivity reactions are rare. Damage to patient’s eyes is unlikely due to the limited exposure, however retinal burns are possible when using high power or laser LCUs. For dental personnel, the cumulative exposure to blue light (430 through 480 nm) from LCUs may result in retinal injury. Exposure may be further enhanced by loupes or microscopes. Therefore, appropriate protective measures are needed to reduce the adverse effects of LCUs.
Learning Objectives
- Consequences of inadequate use of LCUs to elicit adverse clinical reactions
- Possible local tissue damages by LCUs concerning the dental pulp and oral soft tissues
- Awareness rising for dental personnel concerning their repeated exposure to blue light from LCUs
- Responsibilities of the dental team and ways to prevent adverse reactions