Iqbal Humara, Rana Sadiq Amin Ahmed, Manzoor Afshan, Nazir Amara, Akhtar Mobeen, Ghaffar Hareem, Kashif Muhammad
Operative Dentistry, Bakhtawar Amin Medical and Dental College, Multan, PAK.
Operative Dentistry, Nishtar Institute of Dentistry (NID), Multan, PAK.
Cureus. 2023 Aug 28;15(8):e44295. doi: 10.7759/cureus.44295. eCollection 2023 Aug.
Background/objectives Dental amalgam has been a successful restoration for over a century. However, restoration failures due to secondary caries, fractured teeth or restorations, marginal deficiencies, tooth wear, and secondary caries remain significant concerns. Amalgam-bond, known for its ability to bond amalgam to the tooth structure and prevent percolation, forms a strong bond with vital dentin. This study aimed to compare the outcome of marginal fractures in bonded amalgam and conventional amalgam posterior restorations among patients at a tertiary care dental hospital. Materials and methods Sixty consecutive patients aged 25-35 years, meeting the inclusion and exclusion criteria, participated in this study. A thorough history, clinical examination, and standardized periapical radiographs were conducted. Patients were divided randomly into two equal groups, group A and group B. Group A received bonded amalgam restorations, while group B received conventional amalgam restorations. Polishing was performed at a recall visit after seven days, and a follow-up evaluation was done after two months. The final assessment of marginal fractures was recorded after six months. Results After six months, 28 (46.7%) patients showed no marginal fractures, including 11 males and 17 females. On the other hand, 32 (53.3%) patients exhibited marginal fractures, comprising 17 males and 15 females. The clinical success rate of group A was better than group B ( = 0.001). Conclusion Bonded amalgam demonstrates a high success rate and should be a routine choice for treating carious permanent molars in dental practice.
背景/目的 牙科汞合金作为一种修复材料已成功应用了一个多世纪。然而，继发龋、牙齿或修复体折断、边缘缺陷、牙齿磨损以及继发龋导致的修复失败仍是重大问题。汞合金粘结剂以其将汞合金与牙齿结构粘结并防止微渗漏的能力而闻名，它能与活髓牙本质形成牢固的粘结。本研究旨在比较一家三级牙科医院中患者的粘结汞合金和传统汞合金后牙修复体边缘折断的情况。材料与方法 60名年龄在25至35岁之间、符合纳入和排除标准的连续患者参与了本研究。进行了全面的病史采集、临床检查和标准化根尖片拍摄。患者被随机分为两组，A组和B组，每组人数相等。A组接受粘结汞合金修复，而B组接受传统汞合金修复。7天后复诊时进行抛光，2个月后进行随访评估。6个月后记录边缘折断的最终评估结果。结果 6个月后，28名（46.7%）患者未出现边缘折断，其中男性11名，女性17名。另一方面，32名（53.3%）患者出现边缘折断，其中男性17名，女性15名。A组的临床成功率优于B组（ = 0.001）。结论 粘结汞合金显示出较高的成功率，应成为牙科临床治疗龋损恒牙的常规选择。
