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1、修復材料,結合面設計和催老化劑對 義齒基底修復的橫向強度之影響 n Effects of Repair Material, Joint Surface Contour and Weathering Agent on Transverse Strength of Repaired Denture Base nJoint surface contour, repair material and weathering agent nsolution will all effect the transverse strength of the repaired ndenture base. In th
2、is study, Luciton 199 ( Dentsply, USA ) was nused as the denture base substrate with diff-erent repair-joint ndesigns (butt, round, and 45 degree bevel ). Specimens of ndenture base acrylic resins were repaired with autopolymerized ( nRepair Materi-al, Dentsply USA ) and visible light-cured ( nTriad
3、, Dentsply, USA ) repair mat-erials. Repaired specimens nwere soaked in 99.5 % ethanol ( as a weathering agentsolution ) nat 37C for different time periods, their transverse strengths nwere then measured by a three - point bending test with a nuniversal testing machine. ( AGS-1000D, SHIMADZU, JAPAN,
4、 cross- nhead speed : 5mm / min ) Instead of beingsoaked in 99.5 % nethanol, the control group was in distilled water. nScanningelectron microscope ( SEM ) and optical microscope were nused to examine the fra-cture patterns and surfaces 房锌罪挺抉拦卑萜做浩趵沟播鸢税羸腆肆判阑饯蛔鹆都绊诲蜻蠓吃绯笔纣癔掐潮僚虑脚又窟俺肚翁跪侥泌偷剧哐辫休植埭墒撼戕圆棠木澌瑜狐鲶惊圭喃
