Bonding is a popular method to fill in or cover up defects in teeth with a white composite resin. An adhesive gel is placed on the tooth, and the resin is molded and sculpted over it. It is then hardened with UV light and polished.
Bonding can be used to fill teeth after the removal of cavities or to cover stains, cracks, discolorations, chips, or gaps in teeth. It is a technological improvement over highly-visible silver amalgam fillings, and applications usually last more than 10 years.