Whitening Exam Flashcards
(23 cards)
Began with ________ to heal gingival tissue
10% carbamide peroxide strips
What are the materials for vital tooth bleaching?
Hydrogen peroxide 5-40%
Carbamide peroxide 10-44%
What whitening material works faster & better?
Hydrogen peroxide 5-40%
What whitening material takes longer to work & has a higher concentration?
Carbamide peroxide 10-44%
Whitening materials penetrate space _____
Between enamel rods
Where does teeth whitening occur at?
Dentin
What do additives in whitening agents help to reduce?
Sensitivity
What are used for canal treatments of non-vital tooth bleaching?
Peroxide
Heat activation
Whitening agent left in canal temporarily
Walking bleach
What are the pretreatment evaluations?
Pulpal trauma
External resorption
Infection
Caries
Deteriorating/leaking restorations
Where does whitening not receive good results?
Recession areas
What are side effects of whitening?
o Sensitivity
o Irritation of gingiva, mucosa, or throat
o Allergic reaction
o Nausea
o Only teeth in smile line
o 45-60 minutes
o 30-40% HP or 35-44% CP
o Use of light-emitting diode or laser light
o No high intensity light
Power bleaching
What are the application steps for power bleaching?
Determine shade
Place eyewear
Isolate teeth with dam
Apply whitening gel to facials only
Place light into position – wait time
Remove gel & dam
Determine shade
Post-Op instructions
What is the wear time for at home hydrogen peroxide agent?
15 mins- 1 hour
What is the wear time for at home carbamide peroxide agents?
30 mins- 8 hours
As effective as in-office, but longer treatment time
Home whitening prescribed by dentist
What are the steps to fabricating a bleaching tray?
o Impression and model
o Paint resin or polish on facial surfaces
o Vacuform tray
o Remove tray from model and trim
o Fit patient for tray
o Review instructions
o Final checkup
Removes white discolorations on enamel
Enamel microabrasion
o Cleaned with pumice
o Acid slurry: pumice +6% hydrochloric acid
o Applied for 1 minute
o Agitated for additional 1 minute
o If not removed, repeat up to 3 times
Enamel microabrasion
What oxidizes stain in dentin?
Oxygen free radicals
What are examples of extrinsic stains?
Food
Chemicals
Environment
Tobacco
Chlorhexidine
Poor hygiene
What are examples of intrinsic stains?
Genetic
Developmental
Disease
Drugs
