When utilized and applied correctly, bleaching procedure is the most effective and the least harmful of treatments aimed at lightening the teeth. There are two main types of bleaching procedures.
1- Vital bleaching:
- a) Office bleaching:
Office bleaching is performed in the dentist’s office with a specialized light. It usually takes 60 to 90 minutes. The result and success of the procedure depends on the type and concentration of the whitening gel used. Light sensitivity in the tooth may occur following the bleaching process. This condition lasts about one or two days. In some cases, and with the approval of the dentist, the patient may use sensitivity reducing gels after bleaching.
- b) Home bleaching :
In this procedure, the dentist takes impressions of the patient’s teeth, and dental technicians produce transparent custom mouthpieces. At home, the patient fills each mouthpiece with a whitening gel provided by the dentist. The patient then must wear the mouthpiece for two to eight hours every day, allowing the whitening agent to remain in contact with the teeth. Within five to seven days, teeth will be noticeably whiter. Depending on the concentration of the gel used, the dentist may extend the treatment procedure. For best results patients must avoid smoking and drinking coffee, tea, red wine and/or other products that could cause discoloration during the procedure, especially for the first 48 hours after bleaching.
2- Devital bleaching:
This procedure is used to whiten teeth that have lost their natural colour, due a loss of vitality because of root-canal treatment or trauma (falling, strokes, etc.). The dentist drills a small hole in the tooth to be lightened, or removes an old seal, and places a whitening agent inside the tooth. A temporary filling is then applied. The patient is monitored for two to three days and, if necessary, the application can be repeated. When the tooth reaches the desired shade, the dentist removes the temporary filling and completes the treatment with a permanent filling.
Please consult your dentist for detailed information.