Inlays And Onlays
Inlays and Onlays are lab-made restorations that are placed on teeth when the cavity or lost tooth structure is too large to be restored by a simple filling. The process of making an inlay is very similar to a crown. After the tooth is prepared, it is cemented or bonded to the tooth.
There are different materials that inlays are made of, including gold, porcelain, and composite resins. Porcelain and composite inlays and onlays are cosmetic alternatives to fillings and are very strong compared to regular white fillings. Gold inlays and onlays are also suitable alternatives, but their appearance makes them less popular.
When the area of decay includes the cusps of the tooth and it is too large for a filling but not large enough for a crown, then an Onlay is used as shown in the video above.