论文部分内容阅读
牙齿修复充填前,窝洞的清洁处理会提高充填修复物及垫底材料与牙体硬组织间密合度。玷污涂层形成于预备后牙釉质和牙本质的切割面上,任何预备过程都会产生,其厚度约2—5μm。Serbro等(1986)体外研究表明玷污涂层的存在使复合树脂的抗张强度下降,Leidal等(1979)研究表明去除玷污涂层的复合树脂修复后无微泄漏,而未去除或不全去除者,复合树脂修复后出现不同程度
Tooth restoration Prior to filling, the cleaning of the socket improves the fit between the filling restoration and the underlying material and the hard tissue of the tooth. The smear coating is formed on the cut surfaces of the prepared posterior enamel and dentin. Any preparatory process occurs and has a thickness of about 2-5 μm. In vitro studies by Serbro et al. (1986) showed that the presence of a smear coating decreased the tensile strength of the composite resin. Leidal et al. (1979) showed that the composite resin with the defaced coating repaired without microleakage without removal or incomplete removal, After the composite resin repair to varying degrees