Development of stomatognathic function diagnostic system by using a compact 6 degree of freedom jaw tracking device

使用紧凑型六自由度颌跟踪装置开发口颌功能诊断系统

• 批准号: 63440076
• 负责人: BANDO Eiichi
• 金额: $ 16.32万
• 依托单位: The University of Tokushima
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (A)
• 财政年份: 1988
• 资助国家: 日本
• 起止时间: 1988 至 1991
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-63440076/
• 关键词: Jaw tracking device; Magnetic phase space; Stomatognathic function diagnostic system; Occlusal contacts; Six degree of freedom jaw movement; 顎口腔系; 診断システム

The aim of this project was to develop a new compact 6 degree of jaw tracking device which is controlled in the magnetic phase space. Prior to the new device, the Jaw tracking device without the use of face bow has been fabricated as a developmental model of this project. Moreover, the analysis of Jaw function has been advanced in order to develop a highly reliable stomatognathic function diagnostic system. The results were as follows :1. Low signal-to-noise ratio in the wide magnetic phase space was improved by changing the coil and coil driving method.2. Low strained oscillator and low noise amplifier was installed in the analogue circuit for precise jaw movement recording.3. According to the calibration of developmental model, a method of correcting data in the magnetic phase space was attempted. However, there is a need for more precise data correction due to the presence of several nonlinear factors.4. The relationships among head, upper and lower dental arches in clenching were analyzed by using the 6 degree of freedom digital jaw tracking device. As a result, the distortion of stomatognathic system in tooth clenching was detected as well as its influences to the analysis of jaw movement.5. The high resolution 6 degree of freedom jaw movement data were linked to the 3 dimensional reconstructed images of the temporomandibular joint, digital images of maxillary and mandibular arches. The resulting spatially coupled graphic images can be visualized on a PS 390 graphic terminal. The occlusal tooth contacts and the joint space in functional jaw movements were evaluated.6. Stomatognathic function diagnostic system, which consists of a 6 degree of freedom digital jaw tracking device, multichannel EMG recording device and temporomandibular joint sound recording unit is in the process of development.

本项目的目的是开发一种新的紧凑型6度的下巴跟踪装置，这是在磁相空间控制。在新器械之前，已制造了不使用面弓的下颌跟踪器械，作为本项目的开发模型。此外，颌骨功能的分析已被推进，以开发一个高度可靠的口颌功能诊断系统。结果如下：1.通过改变线圈和线圈驱动方式，改善了宽磁相空间下低信噪比的问题.在模拟电路中安装了低应变振荡器和低噪声放大器，用于精确记录下颌运动.根据发育模型的标定，尝试了一种在磁相空间进行数据校正的方法。然而，由于存在一些非线性因素，需要更精确的数据校正.利用六自由度数字化下颌运动跟踪装置，分析了咬合时头、上下牙弓的相互关系。研究结果表明，咬合时口颌系统的变形及其对颌骨运动分析的影响.将高分辨率的6自由度颌骨运动数据与颞下颌关节的三维重建图像、上颌骨和下颌骨的数字图像相关联。所得到的空间耦合图形图像可以在PS 390图形终端上可视化。评价功能性颌骨运动中的牙接触和关节间隙.由6自由度数字化颌骨跟踪仪、多通道肌电记录仪和颞下颌关节音记录仪组成的口腔颌面功能诊断系统正在研制中。

项目成果

中野 雅徳: "顎機能異常(顎関節症)症例に対する6自由度顎運動測定による診断と移行的咬合治療" 四国歯学会雑誌. 4. 87-100 (1991)

Masanori Nakano：“使用 6 自由度下颌运动测量对下颌功能异常（颞下颌关节紊乱）病例进行诊断和过渡性咬合治疗”四国牙科学会杂志 4. 87-100 (1991)。

大久保 由紀子: "咬合接触の3次元解析システムの開発" 日本補綴歯科学会雑誌. 36. 53-63 (1992)

Yukiko Okubo：“咬合接触三维分析系统的开发”日本修复医学会杂志 36. 53-63 (1992)。

郡 元治: "磁感位相空間を応用した顎運動測定器の開発 第2報 口腔内6自由度顎運動測定器" 日本磁気歯科学会雑誌.

Motoharu Kori：“应用磁相空间的下颌运动测量装置的开发，第 2 部分：口内 6 自由度下颌运动测量装置”日本磁力牙科学会杂志。

大久保由紀子: "滑走運動時における咬合接触の3次元解析" 日本補綴歯科学会雑誌. 33(特別号). 143 (1989)

Yukiko Okubo：“滑动运动时咬合接触的三维分析”，日本修复医学会杂志 33（特刊）143（1989）。

Keisuke Nishigawa: "Influence of Occlusal Contact on Jaw Movement and Masticatory Muscle Activity" The Journal of the Japan Prosthodontic Society. 33. 822-835 (1990)

西川圭介：“咬合接触对下颌运动和咀嚼肌活动的影响”日本修复学会杂志。