Computer Aided Dental Cutting System

1.通过将三维位置传感器连接到拱形和手柄上，连续测量手机与拱形的相对角度。对测角系统的校准表明，用于修复的金属和手机不会影响数据的准确性。在手机临床可能使用的所有范围内，角度测量的最大误差小于0.72，远低于允许的误差。研制了HMD显示装置，通过显示转动量来实现手机与弓形的正确夹角。与几名牙医进行了平行制备实验。在每种情况下，制剂的准确性都有很大的提高。从而先后证明了该系统的有用性。

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.