Hodosh M, Shklar G
J Biomed Mater Res. 1977 Nov;11(6):893-901. doi: 10.1002/jbm.820110609.
A study has been carried out on the structure and surface texture of a new dental implant material composed of silica microspheres (3 or 5 wt%) and poly(methyl methacrylate). A recently developed composite material composed of vitreous carbon microballoons and poly(methyl methacrylate) has proven highly successful in clinical use, but the black color presents aesthetic problems at the gingival margin. The new material was developed in order to reproduce the many desirable qualities of the vitreous carbon-polymethacrylate composite, while omitting the black color. Square wafers (10 mm X 10 mm X1 mm) were studied, with the surface sandblasted in half of the specimens. Light microscopy revealed an even spacing of spherical configurations throughout the material. Scanning electron microscope studies revealed a finely porous surface with many large craters in the sandblasted specimens.
一项针对由二氧化硅微球（3或5重量%）和聚甲基丙烯酸甲酯组成的新型牙科植入材料的结构和表面纹理进行了研究。一种由玻璃碳微球和聚甲基丙烯酸甲酯组成的最近开发的复合材料已在临床应用中证明非常成功，但黑色在牙龈边缘处存在美学问题。开发这种新材料是为了重现玻璃碳 - 聚甲基丙烯酸甲酯复合材料的许多理想特性，同时避免黑色。研究了方形薄片（10毫米×10毫米×1毫米），其中一半试样的表面进行了喷砂处理。光学显微镜显示整个材料中球形结构分布均匀。扫描电子显微镜研究显示，喷砂处理的试样表面有许多大凹坑的精细多孔表面。
