Light-curing Reinforcement for Denture Base Resin Using a Glass Fiber Cloth Pre-impregnated with Various Urethane Oligomers

• Published in: Dental Materials Journal Vol. 23; no. 3; pp. 291 - 296
• Main Authors: KANIE, Takahito, ARIKAWA, Hiroyuki, FUJII, Koichi, BAN, Seiji
• Format: Journal Article
• Language: English
• Published: Japan The Japanese Society for Dental Materials and Devices 01-09-2004
• Subjects: Acrylic Resins - chemistry; Acrylic Resins - radiation effects; Analysis of Variance; Composite Resins - chemistry; Composite Resins - radiation effects; Dental Stress Analysis; Dentistry; Denture base resin; Denture Bases; Flexural property; Glass - chemistry; Hot Temperature; Light; Materials Testing; Phase Transition; Pliability; Polymethyl Methacrylate - chemistry; Polymethyl Methacrylate - radiation effects; Polyurethanes - chemistry; Reinforcement
• ISSN: 0287-4547; 1881-1361
• DOI: 10.4012/dmj.23.291

The purpose of this study was to investigate the flexural properties of denture base resin reinforced using glass fiber cloth and a urethane oligomer. The five types of oligomer used in this study were S5, S9, S3, U4, and U6, which have varying functional groups and viscosities. The flexural properties of S9 with glass fiber cloth could not be measured because S9 is elastic. In the heat-cured resin reinforced with S9, the reinforcement peeled away from the resin. In the self- and light-cured resins reinforced with S9, the flexural properties increased significantly. When reinforced with the other four oligomers (S5, S3, U4, and U6), the flexural strength and flexural modulus of the self-, heat-, and light-cured resins increased significantly (p<0.01).