A retrospective clinical study on longevity of posterior composite and amalgam restorations
A retrospective clinical study on longevity of posterior composite and amalgam restorations
复制标题
DOI：
10.1016/j.dental.2005.11.036
复制
发表时间：
2007-01-01
期刊：
影响因子：
5
通讯作者：
Loomans, Bas A. C.
中科院分区：
文献类型：
--
作者：
Opdam, Niek J. M.;Bronkhorst, Ewald M.;Loomans, Bas A. C.
目标。本研究的目的是回顾评估I类和II类银汞合金和复合树脂修复体在一般情况下的寿命。这项研究使用了全科医生的病人记录来收集数据。记录2 0 0 2年2 0 0 2年2 0 0 2年间2位操作者放置的621例患者的2867颗I、II类银汞合金和复合树脂修复体的寿命及失败原因。共放置银汞合金修复体912件(术者1 502件，术者2 410件)和后牙复合树脂修复体1955件(术者1 1470件，术者2 485件)。在观察期内，182个银汞合金和259个后方复合树脂修复失败。失败的主要原因是龋病(34%)、牙髓治疗(12%)和牙齿折裂(13%)。根据数据计算的寿命表显示，复合树脂的5年存活率为91.7%，10年存活率为82.2%。银汞合金5年存活率为89.6%，10年存活率为79.2%。Cox回归分析结果显示，修复体表面的数量对修复体的存活率有显著影响。操作者、操作者以及操作者与操作者的组合对手术效果无显著影响。在所调查的全科医学中，两名牙医在银汞合金和复合树脂修复体中获得了相同的寿命。(C)2005年牙科材料学会。爱思唯尔有限公司出版。保留所有权利。
Objectives. The purpose of this study was to evaluate retrospectively the longevity of class I and II amalgam and composite resin restorations placed in a general practice.Methods. Patient records of a general practice were used for collecting the data for this study. From the files longevity and reasons for failure of 2867 class I and II amalgam and composite resin restorations placed in 621 patients by two operators between 1990 and 1997 were recorded in 2002.Results. 912 amalgam restorations (502 by operator 1 and 410 by operator 2) and 1955 posterior composite resin restorations (1470 by operator 1 and 485 by operator 2) were placed. One hundred and eighty-two amalgam and 259 posterior composite resin restorations failed during the observation period. The main reasons for failure of the restorations were caries (34%), endodontic treatment (12%) and fracture of the tooth (13%).Life tables calculated from the data reveal a survival for composite resin of 91.7% at 5 years and 82.2% at 10 years. For amalgam the survival is 89.6% at 5 years and 79.2% at 10 years. Cox-regression analysis resulted in a significant effect of the amount of restored surfaces on the survival of the restorations. No significant effect of operator, material as well as combination of material and operator was found.Significance. In the investigated general practice, two dentists obtained comparable longevity for amalgam and composite resin restorations. (C) 2005 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.