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作者在前述研究的基础上,对银汞合金和复合树脂充填的洞壁适合性进行了研究。在24个离体人牙上制备了60个牙颈部单面盘形洞,并随机分成以下3个实验组进行充填。1组;用Panavia树脂粘接剂涂布洞壁和银汞合金充填;2组:用Claer-fil New Bond粘接剂涂布洞壁和复合树脂Photopo-sterior充填;3组:用Panavia树脂粘接剂涂布洞壁和用银汞合金充填至低于洞缘1mm处,1小时后,涂Clearfil New Bond粘接剂和用复合树脂Photopo-sterior充填。每组20牙,其中半数酸蚀全部洞壁,另半数仅酸蚀牙釉质壁.将所有受试牙置37℃水中6
Based on the above study, the author studied the wall suitability of silver amalgam and composite resin filling. Sixty single-sided, disc-shaped cavities were prepared on 24 isolated human teeth and randomly divided into the following three experimental groups for filling. 1 group; Panavia resin adhesive coating hole wall and amalgam filling; 2 groups: Claer-fil New Bond adhesive coating hole wall and composite resin Photopo-sterior filling; 3 groups: Panavia resin adhesive The adhesive was applied to the walls and filled with silver amalgam to a depth 1 mm below the edge of the hole. One hour later, Clearfil New Bond adhesive was applied and filled with a composite resin Photopo-sterior. Each group of 20 teeth, of which half of the total erosion of the wall, the other half of the acid erosion of the enamel wall only.All teeth exposed to 37 ℃ water 6