Inlays & Onlays

When more than half of the tooth’s biting surface is damaged a dentist will often use inlays/onlays.

What are inlays/onlays?

Inlays/onlays can be made of porcelain, gold, or a 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/onlays. In recent years, however, porcelain has become increasingly popular due to its strength and color which can potentially match the natural color of your teeth.

How are they applied?

Inlays/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 by the dentist and sent to a lab for fabrication. The dentist will then apply a temporary sealant on the tooth and a subsequent appointment will be scheduled.

At the second appointment, the temporary sealant is removed. Dr. Over will then make sure that the inlay/onlay fits correctly. If the fit is satisfactory, the inlay/onlay will be bonded to the tooth with a strong resin and polished for a smooth finish.


Traditional fillings can reduce the strength of a natural tooth by up to 50% . As an alternative, inlays/onlays that are bonded directly onto the tooth using special high-strength resins, can actually increase the strength of a tooth by up to 75%. As a result, they can last from 10 to 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.

Larry M. Over, DMD, MSD

5 out of 5 stars based on 3 Inlays & Onlays reviews

Our Latest Patient Testimonial

Dr. Over repaired my two 26-year old implants and now they are like my own teeth. He was able to use the existing implants and make new individual teeth for them. They never were as good as they are now. I would highly recommend him to anyone with implants or problems with their existing implants. He will be installing another tooth on a new implant I am having installed on October 23 of this year. It is well worth the trip to Eugene for excellent, highly professional treatment. The office staff is wonderful and puts me at ease on each visit.

- Barbara N

5 out of 5 stars on

Our Latest Patient Testimonial

From the moment I walked into the office I was greeted by a cheerful and helpful person at the front desk. From then on, each person I came in contact with was equally accommodating and a pleasure to be around. The entire office feeling is Professional yet they are able to make you feel comfortable and make you feel like they truly care and want to help you. I can’t say enough about Dr. Over, immediately upon meeting him I felt comfortable and cared about. I have no doubt that my continued experience with Dr. Over and his very professional and knowledgeable staff will be a good one and given all that I need done, I’m very happy that my confidence level is very high and stress/fear level is very low.

- Melissa D

5 out of 5 stars on

Our Latest Patient Testimonial

I just love everyone in Dr. Over's office. They are the most enjoyable practice I have ever visited. I very highly recommend this office.

- Lori S

5 out of 5 stars on