Inlay and Onlay Dental Restorations

The inlay and onlay dental restoration procedure is preferred for teeth with significant tissue loss where it is difficult to place a filling. This restoration can use ceramic, porcelain, or fiber-reinforced filling materials. The right material is chosen based on the patient’s tooth structure, texture, and anatomy in consultation with the dentist and patient. The goal is to preserve the natural structure of the tooth, rebuild the damaged tissue, and restore the aesthetic appearance of the tooth. Compared to traditional restoration methods, it is less invasive and preserves more of the tooth material during the procedure. It offers greater resistance to wear and chewing pressure compared to conventional filling materials. Although the lifespan of this restoration typically lasts for years, it depends on the patient’s oral hygiene routine and dietary habits. Inlays and onlays usually require two sessions and provide the patient with a healthy and aesthetically pleasing tooth.

What are Inlay and Onlay Dental Restorations?

Inlay and onlay dental restorations are applied to teeth with significant tissue loss where restorative treatment (aiming to restore the lost anatomy, function, and aesthetics of the teeth) is insufficient. Often, ceramic restorations, which are tissue-friendly, aesthetically pleasing, and add strength to the tooth they are applied to, are used, but porcelain restorations can also be used depending on the patient’s condition. Ceramic inlay and onlay restorations are not recommended for teeth with excessive wear, bruxism (teeth grinding), insufficient tooth structure to support the restoration, teeth with opposing gold or composite restorations, and teeth where ceramic might not provide sufficient durability. The difference between inlay and onlay restorations is determined by the areas they cover. Inlays are placed on the chewing surface of the tooth, while onlays cover this surface.

How are Inlay and Onlay Dental Restorations Applied?

After cleaning the cavities in the affected tooth or teeth to achieve smooth surfaces, an impression is taken. The impression can be taken using silicone materials with trays placed in the mouth or digitally using intraoral cameras that provide a three-dimensional view of the mouth. A temporary filling is placed in the tooth during this session. The impressions are then sent to the laboratory where the inlay/onlay is prepared with the chosen material. In the second session, the temporary filling is removed, and the inlay or onlay is bonded to the tooth using special adhesives.

Who is Suitable for Inlay and Onlay Dental Restorations?

Inlays and onlays are preferred over crown restorations in cases where excessive tooth material loss is not desired. Inlays and onlays made from porcelain material allow the patient to continue their daily life comfortably in the long term. The likelihood of experiencing problems such as falling out or breaking is low. They also address the patient’s aesthetic concerns.

Inlays and onlays are recommended for teeth with weak structural integrity, teeth that have previously undergone root canal treatment, teeth with decay covering more than half of the tooth surface and deep enough to require root canal treatment. Composite fillings are more prone to fractures in many cases and have less durability.

Post-Care for Inlay and Onlay Dental Restorations

Since the procedure is performed under local anesthesia, the patient should not eat until the anesthesia wears off. For a few days after the procedure, avoid hard foods that could strain the chewing strength, and avoid extremely hot or cold foods. There may be sensitivity in the treated tooth after the procedure, which varies depending on how deep the restoration is. It is recommended to avoid habits that harm oral and dental health, such as alcohol and smoking.

The necessity of inlay or onlay restoration is determined by the dentist. To find out if your tooth requires this type of restoration, you can get detailed information from your dentist.