Exam (elaborations)
Chapter 08. Teeth Whitening Materials and Procedures
- Course
- Dental materials
- Institution
- Dental Assisting School
Chapter 08. Teeth Whitening Materials and Procedures
[Show more]
Content preview
Chapter. 8 Teeth Whitening Materials and Procedures1. Two types of stains: 1. Extrinsic stains (can become
intrinsic): can be removed by hand/ultrasonic scaling, coronal/air
polishing
2. Intrinsic stains: whitening products may or may not lightening
the color depending on special stain and severity; may require
cosmetic restorations (veneers)
2. List possible causes of extrinsic stains: 1. Poor oral
hygiene: yellow, brown, green, black
2. Coffee, tea, red wine, colored cola drinks, foods: brown to black
3. Tobacco products and betel leaf chewing: yellow-brown to
black
4. Antimicrobial rinse (chlorhexidine): brown
3. List possible causes of intrinsic stains: 1. Medications
during tooth development
2. Tetracycline, minocycline: brown, gray, black bands
3. Fluoride: white, brown spots or bands
, 4. Explain how whitening works: Enamel is composed of 97%
of minerals Microscopic spaces between enamel rods
accumulate stain over time; stain may also penetrate to the
dentin
Peroxide or other whitening materials passes through the spaces
in the enamel and reaches the dentin, where it releases oxygen
free radicals that oxidize the stains and lighten the color of the
dentin
* We whitening the dentin, not enamel*
5. The process of whitening can be accelerated by: Low-
intensity heat or high-intensity light (composite curing light, laser,
or a high-intensity plasma arc light
* LED (better) or UV light
6. List currently available whitening materials: 1. Hydrogen
peroxide (fast): liquid, varnish, or gel in concentration from 5% to
40%
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Bellasexams. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $7.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
67474 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now
