Reinforcing the cervical dentin with bonded materials to improve fracture resistance of endodontically treated roots.

Introduction: Endodontic procedure leads to the loss of tooth structure resulting in fractures. Intraorifice barriers of bonded restorative materials placed in the cervical third of tooth may help in increasing fracture resistance.

Materials And Methods: Human mandibular premolars ( = 75) underwent decoronation to adjust working length at 14 mm and prepared up to F3.