Comparative evaluation of fracture resistance of root dentin to resin sealers and a MTA sealer: An in vitro study.

Background: Endodontic obturating materials should form monoblocks, reinforcing the treated teeth against fracture.

Aim: To evaluate and compare the effect of two resin sealers and a MTA sealer on the fracture resistance of endodontically treated teeth.

Materials And Methods: Fifty single-rooted mandibular premolars, decoronated at cemento-enamel junction, were divided into 5 groups (n = 10 each).