Wednesday, 11 March 2015

TEETH WHITENING

TEETH  WHITENING

Prepared by: 
DR.DIVYA  KHANDELWAL
DR.ARIF  KHARODIYA
DR. KHEVNA KHIRSARIYA
DR.ROSHNI  KOLI


It is the process used to treat teeth for aesthetic purposes, eliminating the effect of staining or discoloration of extrinsic or intrinsic origin.
causes of discoloration of teeth:
Teeth can have an infinite variety of color range because of different reasons, mainly the color is genetically (skin color).
The color is given by the set of structures that form the teeth as are the thickness and quality enamel, dentin color and quantity
EXTRINSIC CAUSES: Stains come out of the tooth- ingestion of food, beverages, or contact with other pigmenting agents.
its initial fixation is performed through hydrogen bonds to proteins of dental plaque deposited and fixed to the tooth by calcium bridges.   
INTRINSIC CAUSES:read more...download
Treatment options:
1.No treatment
2.Removal of surface stain
3.Bleaching techniques
Carbamide peroxide(10% - 35%) is also most commonly  used  bleaching agent nowadays.
4.   Operative techniques to mask underlying discolouration
§Veneers
§Crowns

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