Tani C, Itoh K, Hisamitsu H, Wakumoto S
Department of Operative Dentistry, Showa University School of Dentistry, Tokyo, Japan.
Dent Mater J. 1994 Dec;13(2):131-7. doi: 10.4012/dmj.13.131.
The effect of adding micro filler to 4-META MMA/TBB dentin bonding agent was examined by measuring the wall-to-wall polymerization contraction gap of a commercial light-cured resin composite in a cylindrical dentin cavity and the tensile bond strength of the flat dentin surface. Gap formation was not completely prevented by using a filled dentin bonding agent although the tensile bond strength was significantly greater than that obtained using the unfilled dentin bonding agent. These results indicate that the addition of micro filler to the dentin bonding agent does not produce complete adaptation of the resin composite to the dentin cavity wall.
通过测量市售光固化树脂复合材料在圆柱形牙本质窝洞中的壁对壁聚合收缩间隙以及平坦牙本质表面的拉伸粘结强度，研究了向4-META MMA/TBB牙本质粘结剂中添加微填料的效果。尽管使用填充型牙本质粘结剂的拉伸粘结强度明显高于使用未填充型牙本质粘结剂时获得的强度，但使用填充型牙本质粘结剂并不能完全防止间隙形成。这些结果表明，向牙本质粘结剂中添加微填料并不能使树脂复合材料与牙本质窝洞壁完全贴合。
