Year : 2020

Volume : Volume 11

Issue : Issue 2s

Address for correspondence :
Dr. Anada S Rahil
anadas@gmail.com

Abstract

Background:  The aim of this study was to determine the occlusal fracture resistance of three core build-up materials using the Nayyar Core Technique. Material and Method: 30 human extracted maxillary premolars were decoronated till the cementoenamel junction (CEJ) followed by cleaning shaping and obturation. The gutta-percha was removed till the depth of 4 mm with Peso-reamers and were randomly divided into 3 groups. Group I was restored with Admixed Silver Amalgam Alloy (DPI), group II with MultiCore Flow (Ivoclear Vivadent), and group III with Tetric-N-Ceram (Ivoclear Vivadent). The fracture resistance strength of all the specimen groups was tested under a universal testing machine. Result: The data of the study showed that the group II samples which were restored with MultiCore Flow (Ivoclear Vivadent) showed much higher fracture resistance strength compared to the other two groups. Statistically significant difference was noted between group II and other two groups. Difference between group I and III was not significant. Conclusion: It can be concluded that the core buildup done with MultiCore Flow (Ivoclear Vivadent) composite offered better occlusal fracture resistance strength compared to Silver Amalgam alloy and Tetric-N-Ceram (Ivoclear Vivadent).

Keywords: Core buildup materials, corono-radicular buildup, Fracture resistance, MultiCore Flow, Nayyar cores.