Composite bonding typically lasts between 3 to 10 years, depending on factors such as the location of the bonding, the extent of use, and how well it is maintained. The longevity of the bonding can also be influenced by personal habits and oral hygiene. If composite bonding becomes damaged or discolored, it can often be repaired or replaced by your dentist. During a repair, the dentist will remove the old material, clean the tooth, and apply a new layer of composite resin.