Sometimes, bonding also is used to protect a portion of the tooth's root that has been exposed when gums recede.
When the tooth is prepared, your dentist will apply the resin. It is tooth-colored and resembles putty. The dentist molds and smoothes the resin until it's the proper shape. Then it is hardened with an ultraviolet light or laser.
Once the bonding material is hard, your dentist will further trim and shape it. Then he or she will polish it to match the sheen of the rest of the tooth.
The procedure usually takes about 30 minutes to an hour. If you're having more than one tooth done, you may need several visits.
At any time, call your dentist if the bonding chips or if pieces fall out.