【摘要】 为观察龋齿少磨牙的治疗效果，本实验采用化学固化树脂、光敏固化树脂、ＧＣ－Ⅱ玻璃离子粘固粉三种充填材料，对２４０个龋齿作少磨牙充填，经过６个月、１２个月观察以检验其临床疗效。结果显示充填材料与洞壁间的缝隙不可避免，且有随时间推移而递增趋势。ＧＣ－Ⅱ脱落率明显高，尤其在Ⅲ类复合洞充填，故提示不同洞型要选择不同材料充填。更多还原

【Abstract】 The cavity restoration effects of light curing composite, chemical curing composite,glass ionomer were observed,for six and twelve months. The results showed that microleakage increased as time goes on inevitably. The failed incidence of class Ⅲrestoration by glass ionomer was higher.The fact suggested that different preparation selected different materials.更多还原