Dental Onlays

Dental Onlays are a common dental restoration procedure our top Chicago dentists use when you have a damaged or decayed tooth that may need more than just a filling.

Like dental inlays, dental onlays are indirect dental restorations that are used in the replacement of direct fillings. 

A dental onlay is a pre-made restoration that sits on the chewing surface of the back teeth and also extends over the biting surfaces or the cusps of the teeth. At ABC Dental our top Chicago dentists use dental onlays to restore damaged or chipped teeth.   

Like the dental inlays, dental onlays can be prepared from composite resins, porcelain, or gold. Composite dental onlays are less costly, but they are not as strong and durable as the porcelain onlays, and they tend to stain easily. Therefore, in cases where high-strength and aesthetics are desired, we recommend porcelain onlays for lasting results. 

When are Dental Onlays Used?

Dental onlays are used when regular direct fillings are not suitable for restoring a tooth. Such a situation usually arises when there is extensive tooth damage, and a direct filling may cause the tooth to crack under its own weight. In these cases, a dental inlay or onlay is preferred, as they possess superior strength.   

What’s the Difference Between Dental Onlays and Inlays?

Both dental onlays and inlays are indirect restorations and resemble each other in terms of the design. 

However, the difference between them lies in the extent of tooth surface restored by them. 

Dental inlays are usually used in the replacement of direct fillings when a tooth cavity is only present on the chewing surface of a tooth. On the other, when a cavity extends onto the biting surface, or a cusp of a tooth, then a dental onlay is required for restoring that tooth. Hence, a dental onlay covers more tooth surface area than a dental inlay

How are Dental Onlays Prepared?

The process for the fabrication of the dental onlays is similar to that of dental inlays and is usually completed in two appointments. During the first sitting, we will prepare the affected teeth by removing the damaged tooth structure. We will then make impressions of your teeth and send them to the laboratory for fabrication. 

During your next appointment, we will try-on your dental onlay on the prepared teeth to assess their fit and esthetics. Once you and the doctor are satisfied, we will attach your dental onlay to the prepared tooth with an adhesive. 

That’s it. You now have a beautiful smile and a perfect set of teeth!Visit us today and let us take care of your smile and your teeth.  Call 773-481-2200 to schedule or you can book online.