Sometimes, bonding also is used as a cosmetic alternative to amalgam fillings, or to protect a portion of the tooth's root that has been exposed when gums recede.
Once your dentist has chosen the color, he or she will slightly abrade or etch the surface of the tooth to roughen it. The tooth will be coated lightly with a conditioning liquid, which helps the bonding material adhere.
When the tooth is prepared, your dentist will apply the tooth-colored, puttylike resin. The resin is molded and smoothed until it's the proper shape. Then the material is hardened with an ultraviolet light or laser.
After the bonding material hardens, your dentist will further trim and shape it. Then he or she will polish the material until it matches the sheen of the rest of the tooth surface.
The procedure usually takes about 30 minutes to an hour. If you're having more than one tooth done, you may need to schedule several visits.
At any time, call your dentist if the bonding chips or pieces fall out.