15 Questions
What is the main mechanism of bleaching action?
Oxidation-reduction reaction resulting in degradation of complex organic molecules
What are the degradation products of the bleaching process composed of?
Lower molecular weight and less complex molecules
Which type of molecules do bleaching agents act on?
Organic structure of dental hard tissues
What is another name for the bleaching action?
Oxidation-reduction reaction
What technique uses heat and light to activate the bleaching material?
In-office bleaching
What is the most common material used for fabrication of bleaching tray?
Ethyl vinyl acetate
How long is the 35% carbamide peroxide gel applied to the tooth indentations in the guard when used in the dentist's office?
30 minutes
What is the most often used product for mouthguard bleaching?
Carbamide peroxide
What is the range of percentage of peroxide used in mouthguard bleaching?
10-35%
How long may the guard be in place at a time when using the l0% gel at home?
3 or 4 hours
What is the immediate step after placing a freshly mixed sodium perborate/water mixture in the pulp chamber during the walking bleaching technique?
Seal the access opening with a temporary filling
What is the purpose of applying a protective cement barrier in the walking bleaching technique?
To minimize leakage of bleaching agents
In case of internal and external discoloration, which treatment combination can be used?
Intracoronal bleaching and home bleaching using a night guard template
What is the essential requirement for isolating the tooth in the walking bleaching technique?
Rubber dam
After completion of bleaching in the walking bleaching technique, what is used to close the access opening?
Composite material
This quiz explores the mechanism of bleaching action, focusing on the degradation of high molecular weight complex organic molecules present in dental hard tissues. Learn about the reduction or elimination of discoloration and the role of bleaching agents in this process.
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