What is bonding?
Bonding is a painless treatment that is used to make minor repairs to a person’s teeth. Bonding is a relatively simple procedure, and if required, several teeth can be bonded in one appointment.
Bonding uses a material called composite resin, which is tooth-coloured. Composite resin is put on the tooth, then expertly shaped, and hardened with a special light.
The composite resin can be:
- Matched to the colour of your teeth;
- Shaped like the missing part of a chipped or cracked tooth;
- Used to build up ground-down teeth
- Fill gaps between teeth
How bonding is done
Your dentist places a matrix between your problem tooth and its neighbour. A matrix is a thin, clear plastic film that protects other teeth from stray composite resin.
Your dentist will then prepare the tooth by mechanically roughening it, then brushing it with a mild chemical. This will make the tooth a little rough, and help the bond better adhere to the enamel of your tooth. A composite resin has been chosen to match the colour of your natural teeth, so that the bonding blends in with your teeth. Your dentist puts composite resin on your tooth in layers, and a light is used to harden each layer.
After the last layer of composite resin is hardened, your dentist will shape and polish the resin so that it makes a nice form to your tooth. The finished tooth will look quite natural and feel smooth. You will return to the dentist so s/he can examine the bonding, and polish it if needed. The bonding may wear down over time, which may lead your dentist to suggest a touch up with more composite resin.