How a back tooth is repaired and restored depends on the extent of the cavity or damage it has sustained. In many cases, a tooth-colored filling is often sufficient to restore the form and function of a back tooth. However, when a significant amount of tooth structure is damaged, or the tooth has had a root canal, it’s often necessary to fabricate a full coverage crown. In this way, the remaining tooth structure is protected from further damage while full function and a natural- looking smile is restored.