Swift E J, Pawlus M A, Vargas M A
Department of Operative Dentistry, The University of North Carolina, Chapel Hill 27599-7450, USA.
Oper Dent. 1995 Jul-Aug;20(4):138-43.
The purpose of this study was to evaluate the shear bond strength of resin-modified glass-ionomer restorative materials to dentin. The materials tested were Fuji II LC, Geristore, Photac-Fil, VariGlass VLC, and Vitremer. Ketac-Fil, a conventional glass ionomer, was used as the control. The occlusal surfaces of 60 extracted molars were ground flat in dentin using 600-grit silicon carbide abrasive paper. Dentin surfaces were treated according to manufacturers' instructions, and restorative materials were applied using gelatin capsule matrices. Shear bond strengths were determined after the specimens were thermocycled 500 times. Mean bond strengths of the resin-modified glass ionomers ranged from 1.4 MPa (Photac-Fil) to 12.3 MPa (Fuji II LC). Except for Photac-Fil, all values were significantly higher than the control. Pairwise comparisons between the means for Fuji II LC and Vitremer, Vitremer and Geristore, and Geristore and VariGlass were not significantly different.
本研究的目的是评估树脂改性玻璃离子修复材料与牙本质之间的剪切粘结强度。所测试的材料有富士II LC、Geristore、Photac-Fil、VariGlass VLC和Vitremer。传统玻璃离子Ketac-Fil用作对照。用600目碳化硅砂纸将60颗拔除磨牙的咬合面在牙本质上磨平。按照制造商的说明处理牙本质表面，并使用明胶胶囊基质施加修复材料。在对标本进行500次热循环后测定剪切粘结强度。树脂改性玻璃离子的平均粘结强度范围为1.4MPa（Photac-Fil）至12.3MPa（富士II LC）。除Photac-Fil外，所有数值均显著高于对照组。富士II LC与Vitremer、Vitremer与Geristore以及Geristore与VariGlass之间的均值两两比较无显著差异。
