Main Article Content
Acrylic prosthetic resins are used in a number of types of dental prostheses, including complete or removable partial dentures, transitional prostheses, and implant-supported prostheses and polymethyl methacrylate (PMMA) resin is the most commonly used material for denture fabrication. There are various denture base resins commercially for manufacturing of it and it has its own mechanical limitations. Among which fracture of the denture base is the most common one, Various reinforcement methods have been used to prevent recurrent fracture, however repeated fractures frequently occur (1),(2). Those failures are attributed to insufficient flexural strengths of denture bases and it is considered as a primary mode of clinical failure(3),(4). Various methods to strengthen acrylic resin have been suggested. These include chemical modification to prepare high impact resin(5), mechanical reinforcement glass fibers(6),(7), sapphire whiskers,(8) aramid fibers, carbon fibers(9) metal wires,(10) nylon,(11) polyethylene fibers,(12) and zirconia (13).