HISTORY OF TOOTH WHITENING
• Early 1980’s: In-office procedures were available though not commonplace
• 1990’s: In-office as well as patient-applied professionally supervised whitening was more common
• Today: In-office, home whitening, and over-the-counter (OTC) products are available
• Hydrogen peroxide has been used for over 50 years to whiten non-vital teeth HISTORY OF TOOTH WHITENING
TYPES OF STAIN COULD BE REMOVED BY WHITENING PRODUCTS:
Extrinsic stain: (what causes these types of stain?) Coffee, Tea, red wine, Tobacco, any berries with dark color like blueberry.
Intrinsic Stain: Pre and post eruptive causes
* Post-eruptive: amalgam, caries, endo (RCT).
* Pr-eruptive: tetracycline, fluorosis, dentinogenesis & amelogenesis imperfecta
CONTRAINDICATIONS FOR WHITENING:
• Primary teeth (large pulp chambers)
• Newly erupted (immature enamel)
• Extensive restorations
• Caries
• Erosion
• Abrasion
• Hypersensitivity
• Renal abnormalities
Deciduous/Adult
CANDIDATES FOR WHITENING:
• Best result with shades of yellow, orange light brown
• Resistant pigmentation: shades of blue, grey, green, violet
FLUOROSIS:
Brown staining works best. Grey stains takes longer • Opaque white zones won’t react • Surrounding zones will whiten to become a more homogenous colour
NON-CANDIDATES FOR WHITENING:
•Children
• Pregnant or lactating women
• Renal deficiency
• Allergy to hydrogen peroxide
• Severe periodontal disease
• Open carious lesions
• Smokers
Images source:
https://th.bing.com/th/id/OIP.lUrAWdgBeFVZJE1xdE4pJgHaFu?w=216&h=180&c=7&r=0&o=5&pid=1.7
https://th.bing.com/th/id/OIP.TLyRpptloHSgGh7s-KaTeAHaHP?w=191&h=187&c=7&r=0&o=5&pid=1.7
https://www.billdorfmandds.com/images/whitening-p-800.jpeg
https://d1n5s2tett0dwr.cloudfront.net/rTcGkI4uiuFjv_sb5P1CBnGYdeA=/x/filters:no_upscale():quality(99)/https://d1l9wtg77iuzz5.cloudfront.net/assets/4839/217091/original_1.jpg?1517267697