Porcelain inlays or onlays take at least two visits to complete. The decayed or aged filling is removed, a cast is taken and a temporary filling is then placed. Our expert ceramists then create a custom ceramic inlay or onlay for the patient. The second appointment consists of bonding the ceramic product to the patient’s teeth. Porcelain inlays are strong and durable, and depending on the patient’s oral hygiene habits can typically last between five and ten years.