Study on factors associated with decision making in replacement of restorations

生存分析显示，至少60%的树脂复合修复体存活超过10年。与修复体寿命相关的操作者、患者、材料和牙齿因素。临床试验表明，边缘染色的发生率随着时间的推移而增加，但大多数染色在5年内是临床可接受的。问卷调查显示，牙医的性别和临床经验、患者的年龄和龋齿风险、龋齿的临床特征、边缘染色的位置和程度等因素对龋齿的修复治疗阈值和替代标准等牙科修复决策有较大影响。

Survival analysis showed that at least 60% of resin composite restorations survived more than 10 years. Operator-, patient-, material- and tooth-factors related to the longevity of restorations. Clinical trials demonstrated that the incidence of marginal staining increased with time, but most of the stains were clinically acceptable up to 5 years. Questionnaire study revealed that gender and clinical experience of dentists, age and caries risk of patients, clinical characteristics of caries, and location and the extent of marginal staining had a great influence on decision-making in restorative dentistry, such as restorative treatment thresholds for caries and criteria for replacement.