Adaptation and radiographic evaluation of four adhesive systems
Adaptation and radiographic evaluation of four adhesive systems
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DOI：
10.1016/s0300-5712(96)00048-6
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发表时间：
1997-09-01
影响因子：
4.4
通讯作者：
Verdonschot, EH
中科院分区：
文献类型：
--
作者：
Opdam, NJM;Roeters, FJM;Verdonschot, EH
目的：本研究的目的是比较微渗漏，间隙的形成，厚度的粘合剂层和其放射学外观与四个胶粘剂修复程序为I类cavity.Methods：胶粘剂系统具有易于处理的特点，被选择为恢复I类洞在提取的第三磨牙。对每颗牙齿拍摄咬翼片，并要求四名观察员评估粘合剂层的存在。结果：实验组修复体的微渗漏率最低。在不同的粘合剂系统中，粘合剂层的厚度和间隙形成是不同的。具有自蚀刻底漆的粘合剂系统产生最高百分比的无间隙剥离。在X线片上可以检测到厚的粘合剂层。ROC分析结果验证了X线片的诊断。结论：四种修复体在预防微渗漏方面表现良好。与本研究中使用的全蚀刻粘结系统相比，使用树脂改性玻璃离子粘固剂基底并不能防止间隙形成。粘合剂层的存在有助于防止间隙形成，与所使用的粘合系统无关。在X线片上可以检测到厚的粘合剂层。(C)1997年爱思唯尔科学有限公司。
Objectives: The purpose of this study was to compare microleakage, gap formation, thickness of the adhesive layer and its radiographic appearance associated with four adhesive restorative procedures for class I cavities.Methods: Adhesive systems with easy handling characteristics were selected for the restoration of class I cavities in extracted third molars. Bitewing radiographs were taken of each tooth and four observers were asked to assess the presence of the adhesive layer. Microleakage, gap width and the thickness of the adhesive layer of each restoration were measured upon sectioning of the teeth.Results: Microleakage in the experimental restorations was minimal. The thickness of the adhesive layers and gap formation varied among different adhesive systems. The adhesive system with self-etching primer produced the highest percentage gap-free restorations. Thick adhesive layers could be detected on the radiograph. ROC analysis of the results validates the diagnosis from the radiograph.Conclusions: The four restorative systems performed well in the prevention of microleakage. The use of a resin modified glass-ionomer cement base did not prevent gap formation compared with the all-etch bonding systems used in this study. The presence of an adhesive layer contributed to the prevention of gap formation, independently of the bonding system used. Thick adhesive layers could be detected on the radiograph. (C) 1997 Elsevier Science Ltd..