A tooth-colored material used to repair decayed, chipped, fractured, or discolored teeth. Unlike veneers, which are manufactured in a laboratory and require a customized mold to achieve a proper fit, bonding can be done in a single visit. Most often, bonding is used for cosmetic purposes to improve the appearance of a discolored or chipped tooth. It also can be used to close spaces between teeth, to make teeth look longer, or to change the shape or color of teeth. Occasionally bonding is also used to protect a portion of the tooth’s root that has been exposed when gums recede.