Inlays & Onlays
When more than half of the tooth’s biting surface is damaged, a dentist will often use an inlay or onlay.
What are dental inlays and onlays?
Inlays and onlays can be made of porcelain or composite pieces resin. They are then bonded to the damaged area of the tooth. An inlay, which is similar to a dental filling is used inside 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.
In recent years porcelain has become the most popular material of choice due to its strength and color, which can better match the natural color of your teeth.
How are inlays and onlays 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 made by the dentist, and sent to a lab for fabrication. The dentist will then apply a temporary sealant on the tooth and schedule the next appointment.
At the second appointment, the temporary sealant is removed. Dr. Maralani or Dr. Simonsky will then make sure that the inlay or onlay fits correctly. Then it will be bonded to the tooth with a strong resin and polished to a smooth finish.
Considerations for Inlays and Onlays
Traditional fillings can reduce the strength of a natural tooth by up to 50 percent. As an alternative, inlays and onlays, which are bonded directly onto the tooth using special high-strength resins, can actually increase the strength of a tooth by up to 75 percent. As a result, they can last many years.