Abstract: As the rapid development of dental restorative materials, bonding technology, and processing technology, people proposed new ideas on repair methods for molar tooth defect after endodontically treatment in recent years. These new ideas put forward a challenge to the traditional repair methods. Meanwhile, there are also a lot of academic debates. In this paper, we review the related literatures for recent five years. From repair method, repair materials, preliminary preparation method, bonding system, and many other aspects, we analyze the mechanics change after the repair of molar tooth defect and its influence factor so as to provide evidence-based reference for clinical work.

Key words: Tooth defect , Repair, Biomechanics