Freese & Bengtson Family Dentistry, PLLC

Inlays & Onlays in Concord NH

When over 1/2 of the tooth’s biting surface is damaged the dentist will often recommend an inlay or onlay as treatment.

What are inlays and onlays?

Inlays and onlays can be made of porcelain, gold, or composite resin. These restorations are bonded to the damaged area of the tooth. An inlay, which is similar to a filling, is used inside the cusp tips of the tooth; an onlay is a more substantial reconstruction, similar to the inlay but extending out over one or more of the cusps of the tooth.

Traditionally, gold has been the material of choice for inlays and onlays. In recent years, however, porcelain has become increasingly popular due to its strength and color, which can potentially match the natural color of your teeth.

How are they applied?

Inlays and onlays require two appointments to complete the procedure. During the first visit, the filling being replaced or the damaged or decaying area of the tooth is removed, and the tooth is prepared for the inlay or onlay. To ensure proper fit and bite, an impression of the tooth is taken and sent to a lab for fabrication. Dr. Bengtson or Dr. Freese will then place a temporary restoration on the tooth and schedule the next appointment.

At the second appointment, the temporary restoration is removed. The doctor will then make sure that the inlay or onlay fits correctly. If the fit is satisfactory, the inlay or onlay will be bonded to the tooth with a strong resin and polished to a smooth finish.


Traditional fillings can reduce the strength of a natural tooth by up to 50%. As an alternative, inlays and onlays, being bonded directly onto the tooth using special high-strength resins, can promote an increase in the strength of a tooth. As a result, they may also add to the longevity of the restoration. In some cases, where the damage to the tooth is not extensive enough to merit an entire crown , onlays can provide a very good alternative.

Learn More About Inlays & Onlays

For more information, or to make an appointment, call 603-228-3384 today!