Oshida Y, Hashem A, Nishihara T, Yapchulay M V
Department of Restorative Dentistry, Indiana University School of Dentistry, Indianapolis 46202-5186.
Biomed Mater Eng. 1994;4(5):397-407.
In addition to biological and mechanical compatibilities for promising implant materials, a morphological compatibility is proposed by the authors. It has been reported by many investigators that implant surface with appropriate roughness and pore size exhibit better bone ingrowth activities. However, these parameters cannot characterize the complexity of surface textures. In the present study, dentulous and edentulous mandibular alveolar bones were utilized. Four segments from each mandible were subjected to the Fractal Dimension (DF) analysis. It was found that the dentulous mandible showed the DF of 1.81 +/- 0.03 while the edentulous mandible exhibited DF of 1.55 +/- 0.07, indicating that the former has more complex surface texture. It was also found that there could be a linear relationship between the surface roughness and the fractal dimension.
除了具有生物和机械兼容性的有前景的植入材料外，作者还提出了形态兼容性。许多研究人员报告称，具有适当粗糙度和孔径的植入物表面表现出更好的骨向内生长活性。然而，这些参数无法表征表面纹理的复杂性。在本研究中，使用了有牙和无牙的下颌牙槽骨。对每个下颌骨的四个节段进行分形维数（DF）分析。发现有牙下颌骨的DF为1.81±0.03，而无牙下颌骨的DF为1.55±0.07，表明前者具有更复杂的表面纹理。还发现表面粗糙度和分形维数之间可能存在线性关系。
