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Functional Evaluation of Orofacial and Hand-Tapping Movements in Edentulous Patients

无牙颌患者口面部和拍手动作的功能评估

基本信息

批准号：
12671902
负责人：
KITAGAWA Noboru
金额：
$ 1.98万
依托单位：
Showa University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2000
资助国家：
日本
起止时间：
2000 至 2002
项目状态：
已结题

项目摘要

The correlation between movements of the mandible and hand in response to auditory signals were studied to compare motor skills in the orofacial structures and upper extremities.Ten dentulous young adults and 2 geriatric edentulous patients (one, who was not adapted : A, another, who was well adapted to complete denture wearing : B) were asked to make tapping movements of the mandible or hand in synchronization with auditory signals generated at regular intervals of 1.3 time/sec. While tapping, the markers on the menton (Me) and fingertip (Ft) were recorded on videotape using 2 high-speed video cameras from frontal and lateral perspectives. The, movements of each marker were automatically tracked, and the resulting data of the 3-dimensional coordinates was constructed. Then, the trajectory of each monitored point was computed using a 3-dimensional analyzer (Movias 3D) with reference to the following parameters: total length from start to finish of the trajectory (TL); distance between start and finish of the trajectory (SL); TL to SL ratio (T/S); volume of the rectangular solid encompassing the entire trajectory (Cub); the 3-dimensional angles created by the difference in the direction of the preceding and subsequent trajectories at each measured time (TH); and velocity (V).The following results were observed : The time-lag between the auditory signal and Ft movement in the edentulous subjects (A, B) was greater than that of the dentulous subjects (N). Although the time-lag between the signal and Me movement in B was similar to that of N, the time-lag in A was greater than in N and B.In both A and B, during the down phases of Ft, Cub, TL, SL and V were smaller and TH was greater than that in N. During the closing phases of Me in A, Cub, TL, SL and V were remarkably greater than that in N, however, in B, only T/S was smaller than in N and the others were almost within the range of 1SD of N.

本文研究了下颌骨和手对听觉信号反应的运动之间的相关性，以比较口面部结构和上肢的运动技能。10例年轻的有牙颌患者和2例老年无牙颌患者（一个，不适应：A，另一个，完全适应戴全口义齿：B）被要求与以1.3次/秒的规律间隔产生的听觉信号同步地进行下颌骨或手的敲击运动。在敲击时，使用2台高速摄像机从正面和侧面视角记录门顿（Me）和指尖（Ft）上的标记。自动跟踪每个标记的移动，并构建三维坐标的结果数据。然后，使用三维分析仪计算每个监测点的轨迹（Movias 3D），参考以下参数：从轨迹的起点到终点的总长度（TL）;轨迹的起点与终点之间的距离（SL）; TL与SL的比率（T/S）;包围整个轨迹的长方体的体积（Cub）;由在每个测量时间（TH）的先前和随后的轨迹的方向上的差异产生的三维角度;以及速度（V）。观察到以下结果：无牙受试者（A，B）的听觉信号和Ft运动之间的时滞大于有牙受试者（N）。虽然B的信号与Me运动之间的时滞与N相似，但A的时滞大于N和B。在A和B中，在Ft、Cu B、TL、SL和V的下降阶段，TH大于N。在Me的关闭期，A中Cu B b、TL、SL和V显著大于N，而B中只有T/S小于N，其余几乎都在N的1 SD范围内。