Support for oral surgery by vibration monitoring of rotating cutting tool

作者：Yutaka Nakano, Masahiro KANEMARU, Hiroki TAKAHARA, Kazuhiro Takahara · 发表于：The Proceedings of the Dynamics & Design Conference · 年份：2019 · DOI：10.1299/jsmedmc.2019.432 · 被引用次数：1 · 研究领域：Engineering Technology and Methodologies、Dental Implant Techniques and Outcomes

In oral surgery using a rotary cutting tool, it is necessary to remove the hard layer on the surface of the bone and to finish the cutting before reaching the soft layer containing blood vessels and nerves inside. Currently, oral surgeons judge the end of cutting by sensing a subtle feel change of their hands when a cutting bur passes from the hard layer to the soft layer. However, it requires a lot of experience and skill. In this study, we aimed to establish a quantitative evaluation method of the change of sense felt by the surgeon before and after reaching the soft layer. First, using an accelerometer attached to the handpiece and a dynamometer attached to the jig holding a bone test piece, we constructed the experimental device to measure the vibration and cutting force of the handpiece. Next, the changes in the amplitude and frequency of vibration and cutting force were investigated when the cutting bur reaches the soft layer. As a result of bone cutting test by the oral surgeon using animal bones, it was confirmed that the vibration amplitude of the handpiece increased when the cutting bur passes from the hard layer to the soft layer.