Dixon D L, Breeding L C
Department of Prosthodontics, University of Iowa, College of Dentistry, Iowa City.
J Prosthet Dent. 1992 Mar;67(3):417-9. doi: 10.1016/0022-3913(92)90261-8.
This investigation compared the transverse strengths of three denture base resins with and without polyethylene reinforcement fibers. These fibers were incorporated in 10 specimens each of a high-impact strength resin, a rapid heat-polymerized resin, and a light-activated resin. Each specimen was broken on an Instron universal testing machine using a three-point load after processing and air drying. The values obtained were then compared with values previously recorded for the same type of specimens without incorporated fibers. Only the light-activated denture base resin specimens exhibited a significantly higher mean transverse strength after polyethylene fiber reinforcement.
