Bonding involves adhering tooth colored composite resin material to the tooth. This is done to repair damage done to the tooth by decay, to alter the alignment of the teeth, close gaps between the teeth, or for other cosmetic purposes. First, any decay is removed from the surface of the tooth. Next, the tooth is micro etched and a prime/bond agent is applied which allows the material to adhere to the tooth. Then, the material itself is placed on the tooth and hardened with an intense light. Finally, the composite resin material is shaped and polished to get a lustrous smooth finish.