What Is Tooth Bonding? Dental bondings are made from a tooth-colored composite resin. This resin is precisely applied to your damaged teeth, polished, and hardened (bonded) using a special light. Dental bonding restores the size, shape, and appearance of your tooth — all in just one easy and comfortable appointment. Your “new” tooth will look and function just like your original, natural-colored tooth, back before it was damaged.