Analysis of masticatory function and oral morphology using the newly developed tooth wear sensing method

使用新开发的牙齿磨损传感方法分析咀嚼功能和口腔形态

• 批准号: 09309012
• 负责人: SATA Toshio
• 金额: $ 17.54万
• 依托单位: Toyota Technological Institute
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1997
• 资助国家: 日本
• 起止时间: 1997 至 1999
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09309012/
• 关键词: Biting Force Sensor; Analysis of Tooth Wear; Analysis of Jaw Movement; Masticatory Organ; Masticatory Function

(1) Development of sensors for occlusal force and relative motion of teeth (Esashi, Kuroe, Inoue, Kuwabara) An occlusal force sensor based on a capacitance change and a relative motion sensor based on a magnetic coupling were fabricated by micromachine technology. These sensors were implanted in the artificial teeth for the experiment and the occlusal force and the motion were measured. These sensors were applied for various measurements in dental research.(2) Precise measurement of jaw movement by pattern projection method (Yoshizawa, Kuroe, Inou) We developed a measurement system with the accuracy of 0.1mm at the intermittent rate of 1/60 second and measured three dimensional movement of a jaw when a grown-up man, a child or an infant masticates.(3) Microscopic determination of the specific wear rate of tooth surface (Honda, Mohri) Measurement and analytical method of the tooth wear rate are examined. The proposed method using Ti coating and x-ray measurement is useful to determine t … More he wear rate of patient's tooth within 1 nm of error.(4) Three-demensional measurement of enamel distribution (Suwa) We developed a method of reconstructing the three-dimensional distribution of enamel in human molars. Using this method, we investigated the enamel distributional characteristics of human molars, and evaluated existing methods based on thickness measures taken on controlled and arbitrary sections.(5) Analysis of the relation between dental wear and three-dimensional cranial structure (Mizoguchi) It was confirmed through multivariate analyses that three-dimensional cranial structure was associated with dental wear and with vertebral morphology.(6) Comparative analysis of tooth wear patterns among hominoids (Uchida) Morphological variation of the mandibular molar in the extant and Miocene hominoids was analyzed.(7) Development of clinical diagnostic test of masticatory function using a tooth-bearing sensor (Ito, Kuroe, Inoue). Using a pair of tooth-bearing sensors designed by Prof. Esashi, the biting force and the reciprocal movement of upper and lower molars were analyzed to develop a clinical diagnostic test of masticatory function with high accuracy.(8) Evaluation of the development of masticatory system and its relation to diet (Inoue, Sakashita) Dental wear was evaluated on dental casts of infants and the relation among dental wear, ability of masticatory system, diet was studied. Less

(1) 牙齿咬合力和相对运动传感器的开发（Esashi、Kuroe、Inoue、Kuwabara） 通过微机械技术制造了基于电容变化的咬合力传感器和基于磁耦合的相对运动传感器。被植入人造牙中进行实验，并测量咬合力和运动，这些传感器应用于牙科研究中的各种测量。（2）颌运动的精确测量。通过图案投影法（Yoshizawa、Kuroe、Inou）我们开发了一种测量系统，其精度为 0.1mm，间歇速率为 1/60 秒，测量了成人、儿童或成人时下颌的三维运动。 (3) 牙齿表面特定磨损率的显微测定(Honda, Mohri) 研究了牙齿磨损率的测量和分析方法，所提出的使用Ti涂层和X射线测量的方法对于确定牙齿磨损率是有用的。患者牙齿的磨损率误差在 1 nm 以内。(4) 牙釉质分布的三维测量 (Suwa) 我们开发了一种重建人类磨牙牙釉质三维分布的方法。研究了人类磨牙的牙釉质分布特征，并基于在受控截面和任意截面上进行的厚度测量来评估现有方法。（5）牙齿磨损与三维颅骨结构之间的关系分析（Mizoguchi）通过多变量分析证实三维颅骨结构与牙齿磨损和椎体形态有关。(6)类人猿牙齿磨损模式的比较分析(内田)分析了现存和中新世类人猿下颌磨牙的形态变化。 (7) 开发使用齿状传感器的咀嚼功能临床诊断测试（Ito，Kuroe，Inoue）使用一对由设计的齿状传感器。 Esashi教授通过分析上下磨牙的咬合力和往复运动，开发了一种高精度的咀嚼功能诊断临床测试。（8）评估咀嚼系统的发育及其与饮食的关系（Inoue，Sakashita） ) 对婴儿牙模进行牙齿磨损评估，并研究牙齿磨损与咀嚼系统能力、饮食之间的关系。

项目成果

Mizoguchi, Y.: "Significant association between cranial length and sacral breadth : Toward the solution of the brachycephalization problem" Anthropological Science. Vol.106(Suppl.). 147-160 (1998)

Mizoguchi, Y.：“颅骨长度和骶骨宽度之间的显着关联：解决短头化问题”人类学科学。

Suwa G & Kono-Takeuchi R: "A refined method of measuring basal crown and cusp areas by use of a three-dimensional digitizing system" Anthropological Science. Vol.106(Suppl.). 95-105 (1998)

诹访G

坂下 玲子、井上 昌一、渡辺 和宏、井上 直彦: "乳幼児の咀嚼器官の発育評価に関する研究"口腔衛生会誌. 46. 430-431 (1996)

Reiko Sakashita、Shoichi Inoue、Kazuhiro Watanabe、Naohiko Inoue：“婴儿咀嚼器官发育评估的研究”口腔卫生学会杂志 46. 430-431 (1996)。

戸津健太郎、野崎浩一、玉詩男、佐田登志夫、黒江和斗、江差正喜: "歯の噛み合い力と相対位置検出センサシステム" 電気学会 物理センサ研究会. PS-98-15. 77-82 (1998)

Kentaro Totsu、Koichi Nozaki、Shio Tama、Toshio Sada、Kazuto Kuroe、Masaki Esashi：“齿啮合力和相对位置检测传感器系统”日本电气工程师学会物理传感器研究组 PS-98-15。 1998）

R. Sakashita, N. Inoue, K. Watanabe and T. Kamegai: "Electromyographic Evidence for Sufficient and Insufficient Developmental Space in Juvenile Jaws"Orthodontic Waves. 57. 409-416 (1998)

R. Sakashita、N. Inoue、K. Watanabe 和 T. Kamegai：“少年颌骨发育空间充足和不足的肌电证据”正畸波。