OBJECTIVES:To evaluate the performance of cast gold bonded restorations in clinical practice. MATERIALS AND METHODS:The records of all patients treated with cast gold bonded restorations between 1997 and 2004 of The Dental Hospital of Newcastle upon Tyne were reviewed. The following data were recorded: sex of patient, location of teeth (anterior or posterior), position of teeth (upper or lower) and type of cement (glass ionomer, zinc phosphate or resin cement). The survival time was calculated for each restoration; and the reason for failure (either debond or change of treatment plan) identified for each case. The restorations were stratified according to the age of the patient into 10-year age bands and survival analysis was used to identify variables associated with increased risk of failure. RESULTS:Restorations luted with resin cement showed the highest rate of survival after 7 years of follow-up. The alternative lutes had significantly worse survival (p<0.05). Restorations on anterior teeth had poorer survival than on posterior teeth but there were no differences between those placed in the mandible and the maxilla. CONCLUSIONS:Within the limitations of this study resin cements are most appropriate for this type of restoration with 80% survival at 7 years. Restorations placed on posterior teeth survived better.

译文

目的:评估铸金结合修复体在临床中的性能。
材料与方法:回顾性分析了泰恩河畔纽卡斯尔牙科医院1997年至2004年之间所有使用铸金结合修复体治疗的患者的记录。记录以下数据:患者性别,牙齿位置(前牙或后牙),牙齿位置(上牙或下牙)和粘固剂的类型(玻璃离聚物,磷酸锌或树脂粘固剂)。计算每个修复体的存活时间;并确定每种情况下的失败原因(脱骨或改变治疗计划)。根据患者的年龄将修复体分为10岁年龄段,并使用生存分析确定与失败风险增加相关的变量。
结果:经过7年的随访,树脂胶泥恢复的存活率最高。替代的卢特的存活率明显较差(p <0.05)。与前牙相比,前牙的修复生存性较差,但下颌骨和上颌骨的修复之间没有差异。
结论:在本研究的局限性内,树脂水泥最适合此类修复,其7年生存率达80%。后牙的修复效果更好。

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