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临床上充填物边缘失败的现象比较常见,造成失败的原因很多,如继发龋、材料变性等。为评估临床上银汞和复合树脂充填物边缘失败时继发龋的情况,作者作了如下研究。 材料和方法 550名临床医生,收到调查表后,按要求记录各自工作中前5例银汞合金和前5例复合树脂充填物边缘失败的病例。记录内容包括:①充填物边缘失败原因的术前诊断、充填材料、充填物形态,②小心去除充填物,根据术后所见,评价继发龋的发生情况。然后收集、整理资料,进行分析。 结果 对158例Ⅱ类洞银汞合金及172例Ⅲ,Ⅳ,Ⅴ类洞复合树脂充填物边缘失败的病例进行分析,表
Clinically filled the edge of the phenomenon of failure is more common, resulting in many reasons for the failure, such as secondary caries, degeneration of materials. To assess the clinical presence of secondary caries in the event of a marginal failure of amalgam and composite resin fillings, the authors made the following study. MATERIALS AND METHODS 550 clinicians, upon receipt of the questionnaire, were required to record the failure of the first 5 cases of amalgam and the first 5 cases of composite resin filler in their respective jobs. The record includes: ① preoperative diagnosis of the cause of filling failure, filling materials, filling morphology, ② carefully remove the filler, according to the postoperative findings, evaluate the occurrence of secondary caries. Then collect, organize data, analyze. Results 158 cases of Ⅱ type amalgam and 172 cases of Ⅲ, Ⅳ, Ⅴ type composite resin filler failure edge cases were analyzed, the table