Fixed restorations describe restorations that are permanently luted (cemented) or bonded the the mouth. These restorations can be smaller restorations that have a shape similar to a filling (inlay) or they can be extensive spanning multiple teeth (bridge), or something in between. In our office, we typically use ceramic materials for our fixed restorations. Ceramic materials, such as lithium disilicate or zirconia, offer high strength and high aesthetics that surpass traditional porcelain-fused-to-metal crowns.