Year : 2019

Volume : Volume 10

Issue : Issue 1

Address for correspondence :
Dr. Joel G Varghese.
joelgkalapura78@icloud.com

Abstract

Background:  Full-coronal restorations are required after endodontic treatment of teeth as there is significant loss of tooth structure. The present study was conducted to compare fracture resistance of glass fiber, carbon and zirconia posts in endodontically treated teeth. Materials & Methods: The present study was conducted on sixty recently extracted non- carious mandibular premolars. Root canal treatment was done in all teeth and filled with gutta-percha by lateral condensation method. Teeth were divided into 3 groups of 20 each. Group I teeth were treated with glass fiber-reinforced post, group II with carbon post and group III with zirconia post. Tensile strength was measured by applying compressive load at 130° angle to the long axis of tooth with 1 mm diameter using universal testing machine.  Results: It was found that mean tensile strength in group I was 350.2 MPa, in group II was 260.6 MPa and in group III was 482.1 MPa. The difference was significant (P<0.05). Conclusion: Zirconia post offered highest fracture resistance compared to glass fiber-reinforced and carbon posts.

Keywords: Core, Post, Zirconia.