Computer Aided Dental Cutting System

1.通过将三维位置传感器连接到牙弓和手持件上，连续测量手持件与牙弓的相对角度。角度测量系统的校准表明，用于修复的金属和手机不影响数据的准确性。在手机临床可能使用区域的整个范围内进行校准，角度测量的最大误差小于0.72，远低于允许误差。开发了HMD显示设备，其显示旋转量以实现机头与足弓的正确角度。平行准备实验进行了几个牙医。在每种情况下，制备的准确性都大大提高。6.从而成功地证明了该系统的实用性。

1. The relative angles of a handpiece to an arch are successively measured by attaching the three dimensional position sensors to an arch and a handpiece.2. Calibrations of the angle measuring system reveals that metals used for prosthodontics and the handpiece do not affect the accuracy of the data.3. Calibrations over the whole range of the clinically possible areas of usage of handpieces, the maximum error in angle measurement is less than 0.72, which is well below the allowable error.4. The HMD display device is developed which display the amount of rotations to realize the correct angles of the handpiece to the arch.5. Parallel preparation experiments are carried out with several dentists. The accuracy of the preparation is considerably increased in every cases.6. Thus it was successively demonstrate that the usefulness of the system.