Onlays allow cuspal coverage without removing healthy tooth structure unnecessarily. When bonded correctly, they can reinforce weakened cusps while maintaining structural integrity. What Is an Overlay? An overlay extends further than an onlay.
Onlays are utilized for significant tooth damage that does not necessitate a full crown, providing extensive coverage while preserving natural tooth structure. Dental overlays are similar to onlays, albeit covering a larger area of the tooth's surface.