Maurer Peter, Kriwalsky Marcus S, Block Veras Rafael, Vogel Jürgen, Syrowatka Frank, Heiss Christian
Department of Oral and Plastic Maxillofacial Surgery, Martin-Luther-University, Halle-Wittenberg, Halle/Saale, Germany.
Clin Oral Implants Res. 2008 Jun;19(6):570-5. doi: 10.1111/j.1600-0501.2007.01516.x.
The ultrasonic osteotome, which was recently introduced, is an alternative to conventional methods of osteotomy. The aim of the present study was to establish the differences between three osteotomy techniques and to perform a quantitative roughness analysis of the osteotomized bone surfaces.
Fresh bony samples of standardized size were taken from the rabbit skull. The techniques used were as follows: reciprocate micro-saw, Lindemann bur, ultrasonic osteotome with the two insert tips OT6 (rough) and OT7 (fine). The prepared surfaces were examined by light microscopy, environmental surface electron microscopy (ESEM) and by confocal laser scanning microscopy (CLSM).
It was difficult to distinguish between cortical and cancellous bone after using the conventional osteotomy technique. The ultrasonic technique preserved the original structure of the bone. The values observed for superficial roughness were as follows: 3.97 microm (micro-saw), 5.7 microm (Lindemann bur), 2.48 microm (OT7) and 3 microm (OT6). There were statistical differences between the values of the bur and insert tip OT6 (P=0.015) as well as between the bur and insert tip OT7 (P=0.003).
In the present study micromorphological differences after using various osteotomy techniques could be clearly identified.
最近推出的超声骨刀是传统截骨方法的一种替代方案。本研究的目的是确定三种截骨技术之间的差异，并对截骨后的骨表面进行粗糙度定量分析。
从兔颅骨获取标准化尺寸的新鲜骨样本。使用的技术如下：往复式微型锯、林德曼钻、带有OT6（粗糙）和OT7（精细）两种插入尖端的超声骨刀。通过光学显微镜、环境表面电子显微镜（ESEM）和共聚焦激光扫描显微镜（CLSM）对制备的表面进行检查。
使用传统截骨技术后，难以区分皮质骨和松质骨。超声技术保留了骨的原始结构。观察到的表面粗糙度值如下：3.97微米（微型锯）、5.7微米（林德曼钻）、2.48微米（OT7）和3微米（OT6）。钻和插入尖端OT6的值之间（P = 0.015）以及钻和插入尖端OT7的值之间（P = 0.003）存在统计学差异。
在本研究中，可以清楚地识别使用各种截骨技术后的微观形态差异。
