我们从1988年开始应用牙用CO—1粘固剂充填治疗楔状缺损400颗牙齿,治疗效果比较满意,现将观察结果报告如下: 1、楔状缺损依其深度可分为浅型、深型和穿髓型三种,本文所观察的病例前牙288颗牙,后牙112颗牙;浅型179颗牙,深型221颗牙。充填材料为云南昆明齿科材料厂生产的牙用复合 We started from 1988, the application of dental cement with dental cement CO-1 filling wedge-shaped defect of 400 teeth, the treatment effect is satisfactory, the observations are reported as follows: 1, wedge-shaped defect according to its depth can be divided into shallow, deep and Three types of pulp through the wear, the cases observed in this case 288 teeth anterior teeth, posterior 112 teeth; shallow 179 teeth, deep 221 teeth. Filling materials for dental materials factory in Kunming, Yunnan production of dental compound