There have been several methods of Tooth Whitening in recent years during the evolution of Cosmetic Dentistry.

There are store bought, over the counter whitening kits which are not dentist supervised and can have some unpleasant side effects.  There is home tray whitening available at many dental offices including ours.  These kits do work, but they require a significant time commitment for several weeks in order to see a result.  Relapse is also a problem unless it is maintained regularly.

The so-called "Power Tooth Whitening" or laser tooth whitening are also methods which are used but they are very technique sensitive and the results are unpredictable.  We've tried them all in our office.