대한치과보철학회지 (The Journal of Korean Academy of Prosthodontics)
- 제39권6호
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- Pages.589-598
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- 2001
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- 0301-2875(pISSN)
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- 2005-3789(eISSN)
EFFECTS OF CHOPPED GLASS FIBER ON THE STRENGTH OF HEAT-CURED PMMA RESIN
- Lee Sang-Il (Department of Prosthodontics, Graduate School, Seoul National University) ;
- Kim Chang-Whe (Department of Prosthodontics, Graduate School, Seoul National University) ;
- Kim Yung-Soo (Department of Prosthodontics, Graduate School, Seoul National University)
- 발행 : 2001.12.01
초록
The fracture of acrylic resin dentures remains an unsolved problem. Therefore, many investigations have been performed and various approaches to strengthening acrylic resin, for example, the reinforcement of heat-cured PMMA resin using glass fibers, have been suggested over the years. The aim of the present study was to investigate the effect of short glass fibers treated with silane coupling agent on the transverse strength of heat-polymerized PMMA denture base resin. To avoid fiber bunching and achieve even fiber distribution, glass fiber bundles were mixed with PMMA powder in conventional mixer whose blade was modified to be blunt. Composite of glass fiber(