Alhoshani Rahaf Naseer, Khan Asma Munir
Department of Conservative Dental Sciences, College of Dentistry, Qassim University, Qassim, Saudi Arabia.
J Pharm Bioallied Sci. 2024 Feb;16(Suppl 1):S690-S694. doi: 10.4103/jpbs.jpbs_945_23. Epub 2024 Feb 29.
This study intends to evaluate the frequency and causes of replacement for failed amalgam and composite dental restorations.
A cross-sectional study comprising female patients with failed permanent composite and amalgam restorations aged 15-60 years old was carried out at the dental clinics of Qassim University. Using a self-structured proforma, demographic data and causes for restoration failure were recorded. The effectiveness of the restorations was assessed by using the Ryge criteria after performing clinical and radiographic examinations. The Statistical Package for Social Science was used for the statistical analysis.
It is found that 84.6% of the 299 unsuccessful restorations examined were composite, and 15.4% were amalgam. The main reason for dental failure for both amalgam (95.6%) and composite (93.28%) restorations was secondary caries. Failure of amalgam restoration was largely caused by poor marginal adaptation. With varied incidences between amalgam and composite restorations, typical complaints included discomfort, sensitivity, pain, and food impaction with soreness. The main justification for replacement in amalgam restorations was sensitivity. Repair and replacement rates were similar for amalgam, composite, and mandibular/maxillary restorations. Moreover, 21.1% of individuals overall reported no symptoms, with 8.7% in the amalgam group and 23.3% in the composite group with significant differences ( = 34.28, = 0.001).
According to the current study, secondary caries was found to be the main reason for both amalgam and composite restoration failure. The main problems reported were sensitivity, discomfort, and pain with amalgam showing more sensitivity-related failures.
本研究旨在评估失败的汞合金和复合树脂牙科修复体的替换频率及原因。
在卡西姆大学牙科诊所对年龄在15至60岁之间、永久性复合树脂和汞合金修复体失败的女性患者进行了一项横断面研究。使用自行设计的表格记录人口统计学数据和修复失败的原因。在进行临床和影像学检查后，根据赖格标准评估修复体的有效性。使用社会科学统计软件包进行统计分析。
在所检查的299个失败修复体中，发现84.6%为复合树脂修复体，15.4%为汞合金修复体。汞合金（95.6%）和复合树脂（93.28%）修复体失败的主要原因都是继发龋。汞合金修复体失败主要是由于边缘适应性差。汞合金和复合树脂修复体的发生率各不相同，典型的主诉包括不适、敏感、疼痛和食物嵌塞伴酸痛。汞合金修复体替换的主要理由是敏感。汞合金、复合树脂以及下颌/上颌修复体的修复和替换率相似。此外，总体上21.1%的个体报告无症状，汞合金组为8.7%，复合树脂组为23.3%，差异有统计学意义（ = 34.28， = 0.001）。
根据当前研究，继发龋是汞合金和复合树脂修复体失败的主要原因。报告的主要问题是敏感、不适和疼痛，汞合金修复体显示出更多与敏感相关的失败情况。
