SWALLOWING FUNCTION AND AGING

为了建立一种客观评价吞咽功能的方法，对10例正常健康牙齿和2例无牙颌患者的吞咽过程中，用通用超声诊断仪进行舌运动和心音传声器进行吞咽音的观察和分析。记录在记录纸上的舌运动和吞咽音通过数字化仪绘制运动曲线的五个拐点（T1、T2、T3、T4和T5）和吞咽音的两个起始点（S1和S2）进行分析，在每次测量中所有参数均无显著性差异。结果表明，所有数据均具有重复性，T4与S1、T4与S2在统计学上有显著相关性（p<0.001）。S1在统计学上始终领先于T4（p<0.001）。在3例无牙颌患者的T4与S1的关系中，戴义齿组T4与S1的时滞较不戴义齿组延长。当无牙颌患者不使用义齿时，由于下颌骨不得不抬高超过必要的高度，因此推测吞咽困难。从本研究中，我们的评估方法可以用于诊断吞咽功能。

In order to develop an objective evaluating method for the swallowing function, the tongue movements using a general-purpose ultra-sound diagnostic equipment and swallowing sounds using a heart sound microphone in deglutition of ten normal healthy dentate and two edentulous patients were observed and analyzed. The tongue movement and swallowing sounds recorded on the recording paper was analyzed by plotting of five inflection points (T1, T2, T3, T4 and T5) of the movement curve and two beginning points of swallowing sounds (S1 and S2) using a digitizer.There were no significant differences in all parameter in each measurement. It was confirmed that all the data had repeatability.There was significant correlation between T4 and S1, T4 and S2 statistically (p<0.001). S1 was always ahead of T4 statistically (p<0.001). In the relationship between T4 and S1 in three edentulous patients, the time lag of T4 and S1 was extended in case of with denture in comparison with without denture. When an edentulous patient is not using his denture, swallowing is speculated to be difficult because the mandible has to be risen upper more than necessity.From this investigation, it is suggested that our evaluating method could be useful for diagnosis of swallowing function.