teeth whitened

Whiten carefully. Gordon Christensen, DDS, MSD, PhD, from the American Dental Association cautions you to avoid permanent damage.

Bleaching your teeth can cause sensitivity and irritation of the tissues in your mouth.

It s important to match any restorative work--such as crowns--and you should check with your dentist before including previous dental work in the whitening process.

He also points out that little research has been done on the long-term use of whitening agents.

Take a picture of your teeth before whitening. The process is gradual and you may not notice color change without comparing to a before picture.

Some yellowing is natural and is a sign of healthy enamel, which contains calcium, an essential mineral for your teeth. Don t over-bleach to the point of unnatural color or enamel damage.

Dr.