In areas where strength and aesthetics are needed, porcelain inlays and onlays are an excellent option. In the contact areas of teeth, there is a fair amount of wear and tear. If a composite filling material is placed in an area of high stress, then it tends to wear down over time. In cases such as this, porcelain fillings are suggested due to their excellent aesthetics and durability. When
a cusp of a tooth is missing, however there is still enough tooth
structure to support a large filling, then inlays and onlays can be
considered. Just like veneers, they are strong and they are bonded to the teeth using a thin layer of resin material. With the new materials available today, these are almost invisible when they are placed.