Inlays and onlays
When a tooth is fractured, has a large old filling, or is severely damaged by decay, your dentist may recommend the placement of a crown.
When a significant amount of tooth structure is lost in a back tooth, due to a cavity or fracture, a strong, precisely contoured restoration may be required. These restorations are called inlays and onlays, depending on what surfaces of the tooth are being restored.
Inlays and onlays are custom-made restorations that are fabricated by a dental laboratory technician; therefore, these restorations require two appointments. Once the restoration has been fabricated at the laboratory it is bonded or cemented into place to restore the tooth to health and function.