Cortes O, Garcia C, Perez L, Perez D
Dental School, University of Murcia, Spain.
J Clin Pediatr Dent. 1998 Summer;22(4):307-10.
The purpose of this study was to evaluate the marginal microleakage of two compomers, placed in enamel and cementum. The buccal and lingual surfaces of twenty human premolar teeth were used. Materials used were Dyract and Compoglass. Teeth were randomly divided into 4 groups of 5 teeth each. Materials were handled according to the instructions of the manufacturer. Class V cavities were prepared with enamel and cementum margins. The groups with etched surfaces was done using 37% phosphoric acid. Two percent fuchsin was used for microleakage study. Results were evaluated using an analysis of ANOVA. These showed that microleakage in enamel was significantly less than in cementum. No significant differences in microleakage were seen between the two materials or between etched and unetched surfaces.
本研究的目的是评估两种复合体在牙釉质和牙骨质中的边缘微渗漏情况。使用了20颗人前磨牙的颊面和舌面。所用材料为Dyract和Compoglass。牙齿随机分为4组，每组5颗。材料按照制造商的说明进行处理。制备了具有牙釉质和牙骨质边缘的V类洞。使用37%的磷酸处理有酸蚀表面的组。使用2%的品红进行微渗漏研究。结果采用方差分析进行评估。结果表明，牙釉质中的微渗漏明显少于牙骨质中的微渗漏。两种材料之间或酸蚀表面与未酸蚀表面之间在微渗漏方面没有显著差异。
