For stained and discolored teeth, the best and most predictable method of whitening is the dentist whitening. Whitening toothpastes, gels etc that we buy at the supermarket do not routinely give good results and may be quite abrasive on tooth structure.
Dental whitening in the surgery, or using take home trays, gives very accurate and good results. It is a safe procedure undertaken by a dentist.
An impression is taken of the teeth, and a custom tray is fabricated .A gel is placed in these trays and inserted during a 1 hour appointment. Instructions are given to further whiten your teeth at home during the following 1-6 weeks.
The dentist needs to assess if you are a suitable candidate before proceeding.