Year : 2018

Volume : Volume 9

Issue : Issue 3s

Address for correspondence :
Dr. Shaveta Kaushal.
shavetakaushal@gmail.com

Abstract

Background:  Poly(methylmethacrylate) has been used as a denture base material from last 60 years. Besides all the advantages of this material, denture fracture still poses a great problem to the patient. Flexural failure of the denture base material is the prime mode of failure. Various methods have been tried to improve the flexural strength of the material. Fiber reinforcement is one of the methods to improve the flexural strength of denture base resins. The purpose of this study was to evaluate the flexural strength of three different denture base materials with and without reinforcement with polyethylene fibers.  Materials and Methods: Twenty specimens of standard dimensions were prepared for each of the six experimental groups; Trevalon heat cure resin, Acralyn –H & Vertex Rapid Simplified with and without reinforcement with Polyethylene fibers. All samples were then subjected to a 3-point bending test and flexural strength was calculated. Statistical analysis was carried out using 1-way analysis of variance (ANOVA) and Duncan’s Post Hoc test. C Discussion: Incorporation of Polyethylene fibers increased the flexural strength of Trevalon and Vertex Rapid Simplified resin. But there was no statistically significant difference in the flexural strength of Acralyn –H heat cure denture base resin with fiber reinforcement. Keywords: Flexural Strength, Poly-Methyl Methacrylate, Polyethylene Fibers, Denture Fracture.