Effectiveness of Reinforcement by Carbon and Aramid Fiber-cloth to Upper Complete Denture Bases　(Part 1)Thinning of Palatal Area and Flexural Strength

Abstract

This study examined the thinning of palatal area of acrylic resin denture base.After the palatal area was reinforced with carbon-fiber(CF)and aramid-fiber(AF)cloth, it became thin(0.8mm and 0.9mm, respectively).Testing was done by the 4-point bending system, using specimens constrained between the loading steel plates at both molar sides.The palatal area of CF and AF-cloth reinforced denture bases exhibited 50% and 40% thinning, respectively, compared with common resin denture base.The stiffness and the strength of both reinforced denture bases were similar to those of common resin denture base.