resin and to compare it with a high impact strength denture base resin. Materials and Methods: Test specimens were divided into Group1 - poly(methyl methacrylate)(PMMA)(Trevalon), Group 2 - Trevalon High impact, Group 3 -5% glass flake(GF003m) +95% PMMA (Trevalon). For glass flake modified groups, percentage of powder was substituted with the same weight of glass flake as required, to bring it to 100% powder. The specimens were loaded until failure on a three-point bending test machine. An one-way analysis of variance was used to determine statistical differences among the flexural strength of three groups. Data were analyzed by SPSS software. Results: HI PMMA, showed the highest value of flexural strength followed by plain PMMA. C-Glass reinforced PMMA group showed least value of flexion resistance. Conclusion: Flexural strength of plain PMMA denture base resin did not increase significantly with addition of glass flakes.
Key Words: Flexural strength, glass flakes, high impact denture base resin, poly (methyl methacrylate)