CAJ | 학술논문

目的通过测量猪下颌黏膜与自凝基托树脂间的滑动摩擦系数,为有限元分析义齿与黏膜间的接触状态提供基础.方法设计实验装置,制作3个快速自凝基托树脂块,在获知滑动摩擦力以及树脂块和猪下颌口腔黏膜间的正压力下,根据公式:滑动摩擦力=滑动摩擦系数×正压力,用Excel 2007计算滑动摩擦系数.单因素方差分析检验3个树脂块所得滑动摩擦系数的差异.结果 3个树脂块的滑动摩擦系数差异无统计学意义(P＞0.05).树脂块和猪下颌口腔黏膜间的滑动摩擦系数为μ=0.33 ±0.04.结论本项实验测得自凝基托树脂材料与猪下颌黏膜间的滑动摩擦系数,可在临床将有限元模型中义齿基托与黏膜之间设置为滑动摩擦关系.
목적 통과측량저하합점막여자응기탁수지간적활동마찰계수,위유한원분석의치여점막간적접촉상태제공기출.방법 설계실험장치,제작3개쾌속자응기탁수지괴,재획지활동마찰력이급수지괴화저하합구강점막간적정압력하,근거공식:활동마찰력=활동마찰계수×정압력,용Excel 2007계산활동마찰계수.단인소방차분석검험3개수지괴소득활동마찰계수적차이.결과 3개수지괴적활동마찰계수차이무통계학의의(P＞0.05).수지괴화저하합구강점막간적활동마찰계수위μ=0.33 ±0.04.결론 본항실험측득자응기탁수지재료여저하합점막간적활동마찰계수,가재림상장유한원모형중의치기탁여점막지간설치위활동마찰관계.
Objective To measure the friction coefficient between swine mandibular mucosa and self-curing base resin,and to provide setting condition for finite element analysis.Methods Sliding friction is proportional to the positive pressure between the two objects contacting each other,that was f =μ × N.The experiment device was set to measure the sliding friction and the positive pressure between self-curing base resin and swine mandibular mucosa,and the friction coefficient between them was calculated.Results The friction coefficient between quickly self-curing base resin and swine mandibular mucosa was 0.33 ±0.04.Conclusions Based on that the friction coefficient between self-curing base resin and swine mandibular mucosa was measured,the denture base and mucosa could be set to be displaceable in finite element model,so that the results of finite element analysis might simulate clinical situation,and might be more instructive for further clinical studies.