The purpose of restoring a pet's tooth structure (vital or non-vital pulp) with prosthetic material is to return normal function to the dentition, to prevent further breakdown of the animals remaining tooth structure and to create a proper aesthetic appearance. The occlusal protection afforded by an overlying cast restoration should be considered for endodontically treated teeth. In general, the endodontically treated tooth has been structurally weakened by crown fractures, endodontic access preparation, and canal instrumentation. The endodontically treated tooth may become more brittle because of changes in microstructure of non-vital dentin.

Enamel Hypoplasia in a dog's or cat's teeth can be caused by local, systemic, or hereditary factors. Local factors such as periapical inflammation or traumatic injury to a deciduous tooth may lead to Hypoplasia. Febrile disorders during enamel development can interrupt the deposition of enamel, resulting in hypoplastic coronal defects.