Ask a Cosmetic Dentist: What Is Dental Bonding

One of the treatment options a cosmetic dentist may employ to improve the appearance of a person's smile is dental bonding. Also known as tooth bonding, dental bonding is a procedure that involves applying a tooth-colored resin to the teeth to achieve the desired result.

What patients should know about dental bonding

When a cosmetic dentist performs dental bonding, the dentist applies a tooth-colored resin to the teeth and then hardens the material by using a light made for this purpose. As the material hardens, it becomes bonded to the tooth, which keeps the material in place.

Uses for dental bonding

Dental bonding can be used to correct issues with the teeth or to change the appearance of the teeth to meet the patient's aesthetic goals. Dentists perform tooth bonding procedures for multiple reasons:

• Repair chipped, cracked, or decayed teeth.
• Cover stained teeth.
• Give teeth a longer appearance.
• Cover gaps between teeth.
• Alternative to amalgam fillings.
• Cover a tooth root exposed by receding gums.

How dental bonding is performed

If bonding is being done to fill a cavity or change the shape of a tooth, the tooth may need to be drilled before the bonding procedure. Otherwise, the cosmetic dentist begins the process by selecting a resin color that matches the shade of the natural teeth. The dentist then roughens the tooth surface and applies a conditioning liquid to make it easier for the resin to adhere to the tooth. Next, the dentist applies, molds, and smooths the resin into the chosen shape. A bright light or laser is then used to harden the resin. Finally, the dentist shapes and trims the hardened material to achieve the desired result and match the appearance of the natural teeth. The entire process usually takes between 30-60 minutes but may require more than one visit if multiple teeth are being bonded.

Advantages of dental bonding

Dental bonding is often less expensive than veneers or crowns because the material can be molded and shaped in the office by the dentist, rather than manufactured in a lab. The procedure also requires less removal of tooth enamel. However, dental bonding is not as durable or stain-resistant as veneers, crowns, and fillings. Bonding material typically needs to be replaced or touched up in 3-10 years.

Caring for bonded teeth

The bonding material is not as strong as natural teeth, so patients are advised to avoid activities, such as nail-biting and ice chewing, that could chip the resin. It is also a good idea to limit the consumption of coffee, tea, and wine and avoid smoking because these substances can stain the resin.