Tooth Whitening otherwise known as Tooth Bleaching is a cosmetic procedure done for teeth that are discoloured and have lost their whiteness. Tooth Whitening is usually done in two methods:
1. In Office Bleaching
This type of bleaching is done by the dentist in the clinic. This is the most preferred method as the bleaching is at all times under the control of the dentist. It may be done in one sitting or multiple sittings depending on the whitening system as well as the degree of whitening required. The peroxide solution is applied on the teeth and activated with the help of laser light. Sensitivity is one of the problems seen associated with tooth bleaching but this is minimized by reducing the exposure time of the tooth to the peroxide gel.
2. At Home Bleaching
This form of bleaching is done at home with the help of customized trays. This is done by taking impressions of your upper and lower jaws and a tray is fabricated out of acrylic. A low concentration of peroxide in paste form is placed in the tray and then you have to wear it at night for a period of four weeks.
Tooth Bleaching is purely a cosmetic procedure and is not indicated in patients suffering from tooth sensitivity. Tooth bleaching cannot whiten ceramic crowns or composite restorations so care should be taken to have the whitening done before you get your restorations.