What does “Dental onlay” mean?
An onlay is a partial restoration that covers one or more cusps while filling a defect in a tooth. It offers a wider range of protection than an inlay that goes between cusps.
When do cusps need coverage?
When the cusp is weakened by cavities or fractures, covering restorations to withstand chewing forces are considered. Check the remaining tooth walls for cracks and bite.
How do I make it?
Prepare the tooth and fabricate the restoration based on the impression or scan. After checking the fit, contact, and occlusion, it is fixed according to the material.
How is it different from a crown?
A crown is a method that surrounds the crown of a tooth, and an onlay is a method of covering the necessary parts and cusps. Choose one based on whether you can utilize the remaining healthy tooth wall.
Frequently Asked Questions
Is it always better than inlay?
The required extent of coverage differs. Treatment is selected according to damage and loading rather than covering a sufficiently strong cusp without a reason.
Can onlays break or fall off?
Problems may occur depending on the material, thickness, adhesion, and occlusion. After installation, check if there is any discomfort or looseness.
Questions needed to understand onlay
Learn what the term means and how it relates to your dental condition.
- Sufficient understanding
What is the basis for the weakening of the cusp?
Explanation and evidenceCheck the remaining tissue and the extent of cracks and damage.
Cleveland Clinic Restorative Dentistry - A choice suited to your condition
Is partial restoration sufficient protection?
Explanation and evidenceThe tooth surfaces that can be preserved and the support conditions are explained in comparison with a crown.
American Dental Association · Materials for Indirect Restorations
