Teeth whitening is becoming more popular to give the teeth a refreshed, cleaner look. Patients visit the dentist to have impressions taken, which are sent off to a dental technician, to have moulds made of the top and lower teeth.
These moulds are then issued, making sure they fit snugly against the teeth. At home, the patient then applies a viscous, gel like substance to the moulds. The moulds (mouthguards) are then worn for a period of approximately an hour at a time for about two weeks, or until required level of whitening occurs.
This process can be repeated as often as necessary to maintain required level of whiteness, with no adverse affect on teeth.