PDF(Pubmed)
Abstract：
Tooth decay, also known as caries, is a significant medical problem that harms teeth. Treatment is based on the removal of the carious material and then filling the cavity left in the tooth, most commonly with amalgam or composite resin. The consequences of filling failure include repeating the filling or performing another treatment such as a root canal or extraction. Dental amalgam contains mercury, and there is a global effort to reduce its use. However, no consensus has been reached regarding whether amalgam or composite resin materials are more durable, and which is the best restorative material, when using randomized clinical trials. To determine which material is superior, we performed a retrospective cohort study using a large database where the members of 58 dental clinics with 440 dental units were treated. The number of failures of the amalgam compared to composite resin restorations between 2014 and 2021 were compared. Our data included information from over 650,000 patients. Between 2014-2021, 260,905 patients were treated. In total, 19,692 out of the first 113,281 amalgam restorations failed (17.49%), whereas significantly fewer composite restorations failed (11.98%) with 65,943 out of 555,671. This study indicates that composite is superior to amalgam and therefore it is reasonable to cease using mercury-containing amalgam.
摘要：
蛀牙,也被称为龋齿，是伤害牙齿的重大医学问题。治疗是基于去除龋齿材料，然后填充牙齿中留下的空腔，最常见的是用汞合金或复合树脂。填充失败的后果包括重复填充或执行另一种治疗,例如根管或拔除。牙科用汞合金含有汞，全球正在努力减少其使用。然而,关于汞合金或复合树脂材料是否更耐用尚未达成共识，这是最好的修复材料，当使用随机临床试验时。为了确定哪种材料更好，我们使用大型数据库进行了一项回顾性队列研究,该数据库对58个牙科诊所和440个牙科单元的成员进行了治疗.比较了2014年至2021年之间汞合金与复合树脂修复体的失败次数。我们的数据包括来自超过65万名患者的信息。在2014年至2021年之间，有260,905名患者接受了治疗。总的来说,在最初的113,281个汞合金修复中，有19,692个失败（17.49％），而显着较少的复合修复失败（11.98％），在555,671中的65,943。这项研究表明，复合材料优于汞合金，因此停止使用含汞汞合金是合理的。
