Friberg B, Sennerby L, Roos J, Johansson P, Strid C G, Lekholm U
Department of Handicap Research, Faculty of Medicine, University of Göteborg, Sweden.
Clin Oral Implants Res. 1995 Sep;6(3):164-71. doi: 10.1034/j.1600-0501.1995.060305.x.
A method using cutting resistance measurements during low-speed threading for identification of various bone densities has been evaluated with regard to its precision and potential. Pig ribs were used as test samples. Differing hand pressure, minor deviation (5 degrees) from a vertical tapping direction and individual threading did not reveal any significant differences in cutting resistance values. After implants were inserted into the threaded canals, the total bone as well as trabecular and compact bone areas surrounding the implants were calculated via a computer program and using microradiographs of the bone test samples. The outcome of the cutting resistance measurements was compared with that of the microradiographic technique, and good agreement was observed between the two procedures in the ability to identify bone density. Therefore, cutting resistance measurements may in the future also be used to clinically identify bone qualities in jaws.
一种利用低速攻丝过程中切削阻力测量来识别不同骨密度的方法，已就其精度和潜力进行了评估。猪肋骨用作测试样本。不同的手部压力、与垂直攻丝方向的微小偏差（5度）以及个体攻丝操作，均未显示出切削阻力值有任何显著差异。将种植体植入螺纹管后，通过计算机程序并利用骨测试样本的显微放射照片，计算种植体周围的总骨量以及小梁骨和密质骨面积。将切削阻力测量结果与显微放射照相技术的结果进行比较，观察到两种方法在识别骨密度的能力方面具有良好的一致性。因此，切削阻力测量未来可能也会用于临床识别颌骨的骨质。
