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Teeth whitening can effectively remove the stains. There are many teeth whitening treatment options available but the teeth whitening dentist is the best person to guide after understanding the cause of the stains.
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TOOTH WHITENING/BRIGHTENING PROCEDURES The lightening of the color of a tooth through the application of a chemical agent to oxidize the organic pigmentation in the tooth is referred to as bleaching.
Degradation of high molecular weight complex organic molecules that reflect specific wave length of light responsible for the color of the stain into lower molecular weight and less complex molecules that reflect less light is called lightning. • Bleaching is used as sole treatment of choice or in conjunction with other treatment modalities to brighten a whole smile.
HISTORY • Bleaching was unsuccessfully used in the middle ages • Modern bleaching technique began in 1918.Abbot used the combination of superoxol and heat. • 1958—Prarson—intra pulpal bleach • 1967--Nutting and Por—walking bleach
1978—superoxol +heat + light • 1989—Haywood .& Hayman (night guard vital bleaching,10% carbimide peroxide) • 1996—laser tooth whitening officially started with the approval of ion laser technology Argon and CO2 lasers to be used with a potential system of chemicals
BLEACHING MATERIALS Oxidizing agents • Hydrogen peroxide bleaching solution and gels. • Ph : highly acidic • Conc 3-3.5% • Carbamide peroxide based bleaching agents also called Urea hydrogen peroxide, Carbamyl peroxide, Perhydrol urea • Conc : 3-45% • Ph :5-6.5
More and more people would like lighter teeth. Not surprising –as nothing can improve a smile like bright white teeth
Indications • Light enamel discolorations • Mild tetracycline discolorations • Endemic fluorosis discolorations • Age related discolorations
Contraindications • Severe dark discoloration • Severe enamel loss • Hypersensitive teeth • Presence of caries • Large/poor coronal restoration
Procedural steps • Familiarize the patient with • Probable cause of discoloration • Procedure to be followed • Expected out come • Possibility of future re-discoloration • Take radiographs • Detect all carious lesions • Defective restorations and proximity of pulp horns
Evaluate tooth color • With shade guide • Take clinical photographs before and through out treatment.
Apply a protective cream to the surrounding gingival tissues and isolate the tooth with a rubber dam and waxed dental floss ligature. • Do not inject local anesthetic.
APPLICATION OF 30% CARBAMIDE PEROXIDE ON THE TOOTH SURFACE • MATERIAL IS ALLOWED TO STAY FOR 15-20 MINUTES
Significant whitening of teeth after treatment with Vivastyle Paint on
Advantages • professional tooth whitening without a tray, as • Patients find tray application uncomfortable • Patients are looking for a more cost-effective alternative • smooth integration into daily schedule • gentle application • touching up of previously whitened teeth
Technique • Radiographically assess the status of the periapical tissues and the quality of endodontic obturation.Endodontic failures or questionable obturation ,should always be retreated prior to bleaching.