Wennerberg A, Hallgren C, Johansson C, Danelli S
Department of Biomaterials/Handicap Research, Göteborg University, Sweden.
Clin Oral Implants Res. 1998 Feb;9(1):11-9. doi: 10.1034/j.1600-0501.1998.090102.x.
Four different surface modifications were designed. Forty screw-shaped implants were divided into 4 groups, 10 screws in each. Every screw was prepared with 2 different surface topographies. The surface topography was measured with a confocal laser scanning profilometer and the surface roughness was characterized using 1 height, 1 spatial and 1 hybrid descriptive parameter. After 12 weeks in rabbit bone all screws were histomorphometrically evaluated. Blasted surfaces demonstrated more bone in contact to implant surface compared with turned surfaces. Most bone in close contact to implant surface was found for a surface blasted with 75 microns sized particles, numerically characterized with an average height deviation (Sa) of 1.4 microns, an average wavelength (Scx) of 11.6 microns and a developed surface area ratio (Sdr) of 1.5.
设计了四种不同的表面改性方法。将40颗螺旋形种植体分为4组，每组10颗。每颗种植体都制备有两种不同的表面形貌。使用共聚焦激光扫描轮廓仪测量表面形貌，并使用1个高度、1个空间和1个混合描述参数来表征表面粗糙度。在兔骨中植入12周后，对所有种植体进行组织形态计量学评估。与车削表面相比，喷砂表面显示出与种植体表面接触的骨更多。对于用75微米大小颗粒喷砂处理的表面，发现与种植体表面紧密接触的骨最多，其数值特征为平均高度偏差（Sa）为1.4微米、平均波长（Scx）为11.6微米和扩展表面积比（Sdr）为1.5。
