When over 1/2 of the tooth’s biting surface is damaged a dentist will often use an inlay or onlay restoration. Call us for more information about inlay / onlays at our Plymouth / Minneapolis dental office, 763.551.0501.
What are inlays and onlays?
Inlays and onlays can be made of porcelain, gold, or composite resin. These pieces 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 because of its strength and versatiliy. In recent years porcelain has become increasingly popular due to its strength and color, which can potentially 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 and sent to our laboratory for fabrication by our highly skilled dental technicians. Dr. Barsness will then place a temporary restoration on the tooth and schedule the next appointment.
At the second appointment, the temporary restoration is removed. Dr. Barsness will then make sure that the inlay or onlay fits correctly. If the fit is excellent, the inlay or onlay restoration will be bonded to the tooth with a strong resin and polished to a smooth finish.
Considerations for inlays and onlays
Traditional fillings can significantly reduce the strength of a natural tooth. As an alternative, inlay and onlay restorations, being bonded directly onto the tooth using special high-strength resins or state of the art cements, can dramatically increase the strength of a tooth. As a result, they can last 30+ years. 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.