Teeth whitening (bleaching) has become increasingly popular over the last decade. It is no longer reserved just for those people that are in the public eye. There are two types of teeth whitening procedures that are commonly used by cosmetic dentists. The most common procedure has been around for quite some time and involves in-home use of a bleaching gel and custom fitted trays. The second type of teeth whitening procedure employed by dentists involves in-office use of a highly concentrated bleaching gel which is activated by a laser or power light.
Using a laser with a whitening gel, this is an in-office bleaching system. The translucent bleaching gel is applied to the teeth and a laser light is used to activate the crystals to absorb the energy from the light and penetratet the teeth enamel to increase the lightening effect on the teeth.
New findings reveal how a tooth whitening procedure - typically not an option for those children with tetracycline-stained teeth can be effective for lightening dark, intrinsic stains, with results lasting more than four and a half years, according to the Academy of General Dentistry.
The in-office laser/gel system can lighten teeth up to 7-8 shades while the in-home tray/gel system can lighten only 4-5 shades.
Your teeth will naturally discolor over time. Most people need to repeat the procedure every 1-2 years this should be done under a dentist's care so that the gums and teeth may be monitored.