玻璃离子自70年代问世以来,由于它所具有与牙面呈化学性、物理性粘结、对牙髓刺激性小、颜色与牙齿相似、操作简便、价廉,被广泛地应用于临床,尤其是楔状缺损的修复,已收到良好的效果。1 一般资料我们从1989年以来使用玻璃离子粘固剂修复楔状缺损70例,男42例,女28例,年龄25～76岁,病人最少有楔状缺损4颗牙齿,最多的有20颗牙齿,共540颗牙齿,随访时间 Glass ions since the advent of the 70's, because of its chemical and physical bonding with the tooth surface, pulp irritation of small, similar color and teeth, easy to operate, inexpensive, is widely used in clinical practice, especially It is a repair of wedge-shaped defect and has received good results. 1 General Information We have used glass ionomer cement to repair 70 cases of wedge-shaped defects since 1989, including 42 males and 28 females, aged 25-76 years. The patients had at least 4 teeth with wedge-shaped defects and up to 20 teeth, A total of 540 teeth, follow-up time