Most bleaching techniques are some form of derivative of hydrogen peroxide in different concentrations and are applied by different application techniques.
The lightening of the color of the tooth through application of a chemical agent, which tends to decolorize the pigmentation present on the tooth, is referred to as
Bleaching technique may be classified as to whether they involve a living tooth or a tooth with no blood and nerve supply. The procedure can be carried out within the dental clinic or by the patient at his residence.
Bleaching generally has an approximate life span of 1 – 3 years, although this change may be permanent in some situations.
Is there anyway of preventing stains from smoking?
Yes, there is a way. Quit smoking, because there are no cigarettes available in the market, which do not cause staining. Usage of filters could reduce staining to a certain extent.
Micro abrasions: It is a method of elimination of discoloration when the stained areas in abraded away. This technique does result in the physical removal as tooth substance and therefore are indicated only for stains that do not extend beyond a few tenths of a millimeter in depth.
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