CAJ | 학술논문

背景:目前市场上可供选择的瓷粘结系统品种很多,机械强度是树脂水门汀能否应用于临床的先决条件.目的:观察Panavia F树脂枯结剂和自制树脂枯结荆机械强度的差异.设计、时间及地点:对比观察实验,于2006-05/2007-03在解放军第四军医大学修复实验室完成.材料:Panavia F树脂粘结剂由日本KURARAY MEDICAL.INC.提供,自制树脂粘结剂由解放军第四军医大学门腔医学院研制.方法:分别制作高8mm,直释4mm的不同树脂粘结剂的圆柱形压缩强度试件5个,高3mm,直径6mm的圆柱形径向抗张强度试件5个,在AGS-500万能材料试验机测其压缩强度和径向抗张强度.主要观察指标:不同粘结系统中树脂粘结剂的压缩强度和径向抗张强度.结果:Panavia F树脂粘结剂的压缩强度明显高于自制树脂粘结剂[(238.92±24.54),(149.08±12.13)MPa,P＜0.05],两者的径向抗张强度差异无显著件意义(P＞0.05).结论:充分固化后两种树脂水门汀的径向抗张强度相近;虽然自制树脂粘结剂压缩强度低于Panavia F树脂粘结剂,但远高于ADA的规定标准(＞70 MPa),可满足临床要求.
배경:목전시장상가공선택적자점결계통품충흔다,궤계강도시수지수문정능부응용우림상적선결조건.목적:관찰Panavia F수지고결제화자제수지고결형궤계강도적차이.설계、시간급지점:대비관찰실험,우2006-05/2007-03재해방군제사군의대학수복실험실완성.재료:Panavia F수지점결제유일본KURARAY MEDICAL.INC.제공,자제수지점결제유해방군제사군의대학문강의학원연제.방법:분별제작고8mm,직석4mm적불동수지점결제적원주형압축강도시건5개,고3mm,직경6mm적원주형경향항장강도시건5개,재AGS-500만능재료시험궤측기압축강도화경향항장강도.주요관찰지표:불동점결계통중수지점결제적압축강도화경향항장강도.결과:Panavia F수지점결제적압축강도명현고우자제수지점결제[(238.92±24.54),(149.08±12.13)MPa,P＜0.05],량자적경향항장강도차이무현저건의의(P＞0.05).결론:충분고화후량충수지수문정적경향항장강도상근;수연자제수지점결제압축강도저우Panavia F수지점결제,단원고우ADA적규정표준(＞70 MPa),가만족림상요구.
BACKGROUND: There are many species of ceramic bonding systems supplied in market, the mechanical strength is aprerequisite condition for resin cement in clinical use.OBJECTIVE: To study the difference of mechanical strength between Panavia F resin cement and self-made resin cement,DESIGN, TIME AND SETTING: A controlled observational study was performed in the prosthesis laboratory of the FourthMilitary Medical University of Chinese PLA between May 2006 and March 2007.MATERIALS: Panavia F resin cement was sourced from KURARAY MEDICAL INC. (Japan), experimental resin cement wasproduced by College of Stomatological Medicine in the Fourth Military Medical University of Chinese PLA.METHODS: Five cylindrical compressive strength specimens at an 8-mm height and 4-mm diameter were prepared, as well as5 cylindrical diametral tensile strength specimens at a 3-mm height and 6-mm diameter. AGS-500 universal material testingmachine was applied to detect the compressive strength and diametral tensile strength.MAIN OUTCOME MEASURES: The diametral tensile strength test and compressive strength test of the specimens.RESULTS: The compressive strength of Panavia F resin cement was remarkably higher than that of experimental cement[(238.92±24.54), (149.08±12.13) M Pa, P ＜ 0.05]. There were no significances between two resin cements on diametral tensilestrength (P＞ 0.05).CONCLUSION: There were no significance between two resin cements on diametral tensile strength following completecuring. The compressive strength of experimental resin cement can reach the standard of ADA (＞ 70 MPa) although it is lowerthan the compressive strength of Panavia F resin cement.