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The effect of pressure-polymerization on transverse strength of self-cured acrylic resin
Authors :
- Paijit Humpanont
- Piyawat Phankosol
- Kussalee Thongpussa
- Navanvadee Kaewpaluk
Abstract :
Self-cured acrylic resins are widely used for varieties of applications in dentistry. This study was done to determine the transverse strength and deflective rupture when self-cured acrylic resins were cured normally under room pressure compared with cured under pressure and heat-cured acrylic resin. Three products of self-cured acrylic resin, Getz, Takilon, and Palapress and heat-cured acrylic resin, Meliodent, were tested by using 3-point-bend test on a L1oyd universal testing machine. The data were analyzed using one-way ANOVA and Duncan’s multiple range test at 0.05 level of significance. The result found that transverse strength of Getz was significantly improved near to heat-cured acrylic resin, Meliodent, when cured under pressure, while Takilon was not. The data indicated that the use of a pressure pot to increase the transverse strength of self-cured acrylic resins would be effective for some product. The flexibility of self-cured acrylic resins would be effective for some product. The flexibility of self-cured acrylic resin was not significantly improved when cured under pressure.
(CU Dent J 2002;25:113-7)
Keywords :
deflective rupture, pressure-polymerization, self-curing acrylic resin, transverse strength
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