Evaluation of FRC reinforcing on flexural strength of acrylic resin denture bases.

Jafar Gharehchahi, Nafiseh Asadzadeh Aghdaee, Najmeh Kermani

Journal: The New York state dental journal 2011;76(6):40-3

PMID: 21226406

Abstract

Fractures of acrylic denture bases are a common problem in dentistry. Various reinforcement methods have been used to prevent recurrent fractures. The purpose of this study was to evaluate the flexural strength of two types of acrylic denture base resins--Meliodent and Acropars--reinforced with glass fibers. What we found was that the fracture load and flexural strength for the two types of acrylic bases were approximately similar and there was no statistically significant difference between them, which indicates that these types of acrylics are not efficient in fracture load and flexural strength. The use of FRC improved the flexural strength in acrylic bases.

Address: Department of Prosthodontics, Dental School, Dental Research Center, Mashhad University of Medical Science, Iran. [email protected]

MeSH Terms: Acrylic Resins, Dental Materials, Dental Restoration Failure, Dental Stress Analysis, Denture Bases, Denture Repair, Double-Blind Method, Glass, Humans, Materials Testing, Methylmethacrylates, Pliability, Stress, Mechanical, Temperature, Time Factors, Water