Journal of Conservative Dentistry
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Year : 2016  |  Volume : 19  |  Issue : 4  |  Page : 364-367

Comparison of fracture resistance of endodontically treated teeth restored with nanohybrid, silorane, and fiber reinforced composite: An in vitro study

1 Department of Conservative Dentistry and Endodontics, K.M. Shah Dental College, Sumandeep Vidyapeeth, Vadodara, Gujarat, India
2 Department of Conservative Dentistry and Endodontics, K.M. Shah Dental College, Vadodara, Gujarat, India

Correspondence Address:
Dr. Nimisha Chinmay Shah
Department of Conservative Dentistry and Endodontics, K.M. Shah Dental College, Sumandeep Vidyapeeth, Piparia, Vadodara, Gujarat
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0972-0707.186458

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Background: The present study was undertaken to evaluate the most suitable restorative for badly mutilated endodontically treated teeth. Aims: To evaluate and compare the fracture resistance of endodontically treated premolars restored with conventional nanohybrid, silorane composite with glass fibers and newer fiber-reinforced composite in mesio-occluso-distal (MOD) cavities. Materials and Methods: Sixty extracted human maxillary premolars were selected. Fifteen intact teeth served as positive controls (Group 1). Endodontic therapy was done in the remaining 45 teeth. MOD cavities were prepared in all the teeth with standardized dimensions and were randomly divided into three groups (Group 2 - nanohybrid + glass fibers, Group 3 - silorane + glass fibers, and Group 4 – fiber-reinforced composite). Restorations were done for all groups. Fracture resistance was measured by Instron universal testing machine. Statistical Analysis Used: One-way anova test and Tukey's post hoc test. Results: Highest fracture resistance was shown by intact teeth group followed by fiber-reinforced composite, nanohybrid, and silorane, respectively. Statistically Significant difference was revealed by anova test (P < 0.0001) and Tukey's post hoc test (P < 0.0001). Conclusions: Among the experimental groups, fiber-reinforced composite showed the highest fracture resistance. Statistically significant difference was observed for all the groups.

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