Inlays and Onlays
Partial Crowns
Inlays and onlays are often referred to as partial crowns. They use the existing tooth as a base and fit the inlay or onlay onto the tooth. This is done to strengthen the tooth, restore its shape, and prevent further damage. An inlay is done when there is no damage to the cusps of the tooth and the inlay can be placed right on the tooth. An inlay is used when the damage is a little more extensive.
The decayed area of the tooth is first removed during the procedure. A mold of the tooth is then taken and sent to a dental lab. They create a restoration made from porcelain, gold, or a composite resin. The restoration takes about 2-3 weeks to make, so a temporary inlay or onlay will be placed on the tooth for that time. During your next visit the inlay or onlay will be placed into your mouth and set with cement. Your tooth will look natural and you or anyone else won’t be able to tell the difference.
Inlay & Onlay FAQs
What are inlays and onlays?
Inlays and onlays are custom-made restorations used to repair back teeth with moderate damage or decay. An inlay fits within the grooves between the cusps (raised points) of a tooth, while an onlay covers one or more cusps. Onlays are sometimes called partial crowns.
When are inlays and onlays recommended?
Inlays and onlays are recommended when a tooth has too much damage for a regular filling but still has enough healthy structure that a full crown is not needed. They are a middle-ground option between a filling and a crown.
What is the difference between an onlay and a crown?
A crown covers the entire visible tooth, while an onlay covers only the damaged portion. Because less tooth needs to be reshaped for an onlay, it can preserve more of your natural tooth structure.
What is the difference between an inlay and a filling?
A filling is placed and shaped directly in the tooth during one visit, while an inlay is custom-made to fit the tooth and then bonded in place. Inlays are often recommended for larger areas of damage, where their precise fit adds strength.
What is the process of getting an inlay or onlay?
Inlays and onlays typically take two visits. At the first, the tooth is numbed, the decay or old filling is removed, impressions are taken, and a temporary restoration is placed. At the second, the custom inlay or onlay is checked for fit and bonded to the tooth.
What materials are inlays and onlays made from?
Inlays and onlays can be made from tooth-colored materials such as porcelain or composite resin, which blend in with your natural teeth, or from gold. Dr. Hwang will recommend the material that best fits the location of the tooth and your needs.
This information is general and is not a substitute for an exam with Dr. Hwang. For emergencies, please call 911 or go to the nearest emergency room. For dental concerns, call West Campus Dental Center at 253-838-3283.
