牙齿漂白系统课件.ppt

Bleaching with BioSmile What is the reason for bleaching? Many patients whish to have brightened teeth White teeth signalize attractiveness and sympathy Media, press and advertisement show nearly always brilliant white teeth Trend form the USA becomes more distinct Is bleaching safe? Very high success rate 92 % of the patients are satisfied with the bleaching result, 87 % would repeat the bleaching (according to Leonhard,1998) Simple application Nearly no side effects Minimal invasive What happens when bleaching? The effect is based on the release of hydrogen peroxide from the bleaching material Hydroxyl radicals diffuse into the teeth and cause an oxidation of color molecules which brighten the teeth Therefore restorations are not bleached Possible relapse after 2 – 4 years BioSmile System BioSmile home Home Bleaching Set with 10 % or 18 % carbamide peroxide In syringes for the application at home in individually produced splints BioSmile office Office Bleaching Set with 35 % hydrogen peroxide For the application in the dental surgery BioSmile home Indications: Genetic dispositions ( e. g. ?yellow teeth“) Discolorations caused by old age Discolorations caused by medicine (e. g. tetracycline) Form of application: Set with 4 syringes to 2 ml pH-value 6.0 – 6.5 10 % carbamide peroxide disintegrates to approx.. 3 % hydrogen peroxide and to approx. 7 % urea BioSmile home Differences between the 10 % and the 18 % gel: Faster start of the effect when using the 18 % gel Slightly increased appearance of hypersensitivity (Kihn et al. 2001) The wearing period is limited to 2 hours Further components of the set: BlockOut material (light-curing) Thermo-forming foil (Drufolen W) Thermo-forming foil (BioBleach soft) Safekeeping box BioSmile home: Application Anamnesis through the dentist Determination of the starting color and the color which should be reached BioSmile home: Application Professional tooth cleaning BioSmile home: Application Impression