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A STUDY OF THE TEETH PALPATION AS A OCCULUSAL EVALUATION

牙齿触诊作为咬合评估的研究

基本信息

批准号：
03807131
负责人：
ITO Yutaka
金额：
$ 0.9万
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 (C)
财政年份：
1991
资助国家：
日本
起止时间：
1991 至 1992
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-03807131/
关键词：
OCCLUSION OCCLUSAL CONTACTS PREMATURE TOOTH CONTACTS TOOTH PALPATION OCCLUSAL EVALUATION FINGER PRESSURE MANDIBULAR MOVEMENT TOOTH VIBRATION 周波数分析

项目摘要

Digital plapation during tooth tapping is particularly useful for occlusal adjustment of teeth and restorations because of the simplicity of the technique, and because it requires no special equipment. The purposes of this study were to investigate the finger pressure, the tooth displacement and the discriminate ability of dentist premature tooth contact applying tooth palpation. A simulator for palpation was produced using a articulator and upper and lower cast made from resin. The artificial teeth of upper right central incisor, canine and first molar of the cast were used for the subjective teeth of palpation. The displacement meter produced from magnet and magnetic sensor was fixed on each lingual surface of the subjective tooth. The teeth tapping movement was simulated by the pendulous movement of the simulator's lower structure constructed from the lower part of articulator and the lower cast. Furthermore the occlusal interference was simulated by each multiple-thickness(25,50,100 and 200mum) platinum foil which was fixed on the lower dentitions of the cast in sequence. 5 dentists participated in this study.Following results were obtained from this study.1. The finger pressure of palpation using simulator showed stronger than the values of previous reports which were investigated indirectly.2.Only the labial displacement of upper incisor increased according to the amount of interference.3. The greater part of dentists could discriminate the existence of occlusal interference which were 100 or 200mum at the every subjective tooth.4. There was no relation between the displacement of tooth and dentists' discrimination in this study.

牙攻过程中的指状拍打对于牙齿的咬合调整和矫正特别有用，因为该技术简单，而且不需要特殊设备。本研究旨在探讨牙触诊法对牙接触者手指压力、牙齿位移及牙接触者对牙接触的判别能力。使用咬合架和由树脂制成的上下铸件制作用于触诊的模拟器。以上颌右中切牙、尖牙和第一磨牙的石膏模型作为触诊的主观牙。将由磁体和磁传感器制成的位移计固定在受试牙的每个舌面上。模拟器下部结构由牙合架下部和下石膏模型构成，通过其摆动运动模拟牙齿的攻牙运动。将多层（25、50、100和200 μ m）铂箔依次固定在模型的下牙列上，模拟咬合干扰。5名口腔科医师参加了本研究，研究结果如下：1.模拟器触诊的手指压力比以前间接调查的报道值要大。2.只有上门牙的唇位移随着干扰量的增加而增加。3.绝大部分的牙科医生能够分辨出每颗主观牙齿上100或200 μ m的咬合干扰的存在.本研究中牙齿移位与牙医的辨别力无关。