Ohtani Takafumi, Kusumoto Naoki, Wakabayashi Kazumichi, Yamada Shinichi, Nakamura Takashi, Kumazawa Youichi, Yatani Hirofumi, Sohmura Taiji
Division of Oromaxillofacial Regeneration, Course for integrated Oral Sciences and Stomatology, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan.
Dent Mater J. 2009 Jan;28(1):75-81. doi: 10.4012/dmj.28.75.
To enable accurate implant placement and precise drilling following preoperative simulation, we developed the BoneNavi system. To realize more precise drilling when the holes are upsized, two methods of surgical guiding were attempted in the present study. One involved using multiple surgical guides with titanium tubes of different diameters, and the other involved using a single surgical guide but employing titanium drill guide tubes with different diameters. Drilling accuracy of the two newly developed methods was examined and compared with the results of drilling into a pig bone using only the initial surgical guide. Deviations of the position and angle with the two novel methods were similar: 0.17 mm and 1 degree respectively. As for the control group whereby drilling was done using only the initial surgical guide, the deviations were 0.25 mm and 3.50 degrees--which were significantly larger than those achieved with the two novel methods. In light of the results obtained, our newly developed BoneNavi system is especially applicable for severe clinical cases that require precise implant placement.
为了在术前模拟后实现精确的种植体植入和精确钻孔，我们开发了BoneNavi系统。为了在扩大钻孔尺寸时实现更精确的钻孔，本研究尝试了两种手术引导方法。一种方法是使用多个带有不同直径钛管的手术导板，另一种方法是使用单个手术导板，但采用不同直径的钛钻引导管。对这两种新开发方法的钻孔精度进行了检查，并与仅使用初始手术导板钻入猪骨的钻孔结果进行了比较。两种新方法的位置和角度偏差相似，分别为0.17毫米和1度。对于仅使用初始手术导板进行钻孔的对照组，偏差为0.25毫米和3.50度，明显大于两种新方法的偏差。根据获得的结果，我们新开发的BoneNavi系统特别适用于需要精确种植体植入的严重临床病例。
