Qvist V, Thylstrup A, Mjör I A
Acta Odontol Scand. 1986 Dec;44(6):351-6. doi: 10.3109/00016358609094345.
A survey has been made of the reasons for placement and replacement of 883 resin restorations in Denmark. In patients more than 16 years of age 39% of all restorations were made because of primary caries, and 61% were replacements of failed restorations. In primary teeth 63% and in permanent teeth of children 65% of the restorations were made because of primary caries. The reasons for replacement of restorations were dependent on dentition, age of the patient, and type of restoration. Secondary caries, loss of fillings, and marginal discrepancies were the most frequently recorded reasons for replacement of failed resin restorations. The age of the restorations replaced ranged from 0 to 15 years, and half of the replaced resin restorations in adults were just over 6 years old. In permanent teeth in children half of the failed restorations were replaced within 2 years, whereas half of those in primary teeth were replaced within 1 year. Information on a selected material of old silicate cement restorations in adults showed that two-thirds of these were replaced owing to marginal discrepancies and lost fillings.
对丹麦883颗树脂修复体的放置和替换原因进行了一项调查。在16岁以上的患者中，所有修复体中有39%是由于原发性龋齿进行的，61%是对失败修复体的替换。在乳牙中，63%的修复体以及儿童恒牙中65%的修复体是由于原发性龋齿进行的。修复体替换的原因取决于牙列、患者年龄和修复体类型。继发龋、充填物脱落和边缘差异是失败树脂修复体替换最常记录的原因。被替换修复体的使用年限为0至15年，成人中被替换的树脂修复体有一半使用年限刚超过6年。关于成人中选定的旧硅水门汀修复体材料的信息表明，其中三分之二是由于边缘差异和充填物脱落而被替换的。
