21 King Charles Drive, Portsmouth, RI 02871 — 401-683-5990
Inlays / Onlays
Inlays and onlays can be made of porcelain, gold, or composite resin. They are bonded to the damaged area of a 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 cusps of the tooth.
While gold has long been the material of choice for inlays and onlays, in recent years porcelain has become popular due to its strength and color.
Inlay and onlay restorations require two appointments to complete the procedure. During the first visit, the filling being replaced, or the damaged or decayed area of your tooth, is removed. The tooth is prepared for the inlay or onlay. To ensure a proper fit and bite, an impression of your tooth is taken and sent to a lab to be fabricated. Drs. Nogueira or Ruel will then apply a temporary restoration to protect the tooth.
At your second appointment, the temporary restoration is removed and special attention is paid to make sure your inlay or onlay fits correctly. If the fit is right, the inlay or onlay will be bonded to the tooth with a strong resin and polished to a smooth finish.
Fillings can reduce the strength of a tooth by 50% or more. As an alternative, inlays and onlays, since they are bonded directly to the tooth using high-strength resin, can increase the strength of your tooth by up to 75%. Because of this, they can last from 10 to 30 years. Onlays can also be a good alternative to teeth where the damage does not merit the placement of an entire crown.