Development of new occlusal evaluation system based on peculiarity of tooth vibration during palpation.

开发基于触诊过程中牙齿振动特性的新型咬合评估系统。

• 批准号: 06454564
• 负责人: ITO Yutaka
• 金额: $ 4.61万
• 依托单位: Aichi-Gakuin University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06454564/
• 关键词: Occlusal Evaluation; Tooth Vibration; Palpation; FFT analysis; Peak Frequency; Premature Contact; maximum amplitude; 咬合診査; 振動加速度; 周波数分析; 累積積分値

Our previous studies indicated that the tooth vibration during palpation showed a growing amplitude around 200 Hz when the palpated tooth had some premature contact, and that the maximum amplitude of tooth vibration might be a new parameter for an objective occulusal evaluation when a suitable finger pressure (from 50 to 150 gr.) was applied. The purpose of this study was to confirm the reliability of the new parameter for occlusal evaluation. Five volunteers were used and each tooth vibration of their #11,21,13,23,14 and 24 teeth was measured during habitual closing movement of the mandible. Artificial premature contact to teeth #11,13 and 14 was simulated individually by a multiple-thickness platinum foil. But no artificial premature contact was given to teeth #21,23 and 24, which was measured for each control tooth #11,13 and 14. The accelerometer pick-ups were used to measure the tooth vibration with about 50 gr.finger pressure. FFT analysis was applied to each wave form of tooth vibration, and then the maximum amplitude and its peak frequency were calculated. The results were as follows : each vibration of the teeth given premature contact showed a significantly higher value in the maximum amplitude than the vibration of each control tooth (Student's t-Test, p<0.01) and also all of the peak frequencies were observed in the range of 150 to 750 Hz (Confidence Interval at the 99%).Then we manufactured a new occlusal evaluation system using these results based upon tooth vibration during palpation

我们之前的研究表明，当触诊牙齿有一些过早接触时，触诊过程中牙齿振动显示出约 200 Hz 的增大幅度，并且当施加合适的手指压力（从 50 到 150 克）时，牙齿振动的最大幅度可能是客观咬合评估的新参数。本研究的目的是确认咬合评估新参数的可靠性。使用了五名志愿者，并在下颌习惯性闭合运动期间测量了他们的 #11、21、13、23、14 和 24 颗牙齿的每颗牙齿振动。通过多种厚度的铂箔分别模拟与牙齿 #11,13 和 14 的人工过早接触。但没有对#21,23 和 24 牙齿进行人工过早接触，而是对每颗对照牙齿 #11,13 和 14 进行测量。使用加速度计传感器以约 50 gr 的手指压力测量牙齿振动。对牙齿振动的每种波形进行FFT分析，然后计算最大幅度及其峰值频率。结果如下：过早接触的牙齿的每个振动的最大幅度值均显着高于每个对照牙齿的振动（学生 t 检验，p<0.01），并且所有峰值频​​率都在 150 至 750 Hz 范围内观察到（置信区间为 99%）。然后，我们根据触诊期间的牙齿振动使用这些结果制造了一个新的咬合评估系统

项目成果

YUTAKA ITO: "The Marks of the Articulating Paper and the Occlusal Evaluation by the Dentists" THE AICHI-GAUIN JOURNAL OF DENTAL SCIENCE. 33-3. 579-590 (1995)

YUTAKA ITO：“牙医咬合纸的标记和咬合评估”爱知-高因牙科科学杂志。

TAKASHI YOKOYAMA: "Discrimination of the Opposing Conact Condition using the Mannual Pressure Part 1" The Journal of the Japan Prosthodontic Society, PROCEEDINGS OF THE 96th CONFERENCE THE JAPAN PROSTHODONTIC SOCIETY. 40. 156 (1996)

横山 TAKASHI YOKOYAMA：“使用手动压力辨别相对接触条件第 1 部分”日本修复学会杂志，第 96 届日本修复学会会议记录。

伊藤 裕: "咬合紙による印記状態が咬合診査におよぼす影響" 愛知学院大学歯学会誌. 33. 579-590 (1995)

Yutaka Ito：“咬合纸标记条件对咬合检查的影响”爱知学院大学牙科学会杂志 33. 579-590 (1995)。

横山 隆: "手指圧を利用した対合接触状態の判定 第1報" 日本補綴歯科学会雑誌第96回日本補綴歯科学会学術大会論文集. 40. 156-156 (1996)

Takashi Yokoyama：“使用手压力确定交配接触状态，第一个报告”日本修复学会杂志第 96 届日本修复学会学术会议论文集 40. 156-156 (1996)。

YUTAKA ITO: "New Occlusal Evaluation System Based on Peculiarity of Tooth Vibration." Journal of Deantal Research. 76. 371-371 (1997)

YUTAKA ITO：“基于牙齿振动特性的新咬合评估系统。”