Hiraki K, Yamada Y, Kurose M, Ofusa W, Sugiyama T, Ishida R
Department of Oral Health and Clinical Science Division of Dysphagia Rehabilitation, Tokyo Dental College, Tokyo, Japan.
Oral Health Science Center, Tokyo Dental College, Tokyo, Japan.
J Oral Rehabil. 2017 Jan;44(1):65-72. doi: 10.1111/joor.12456. Epub 2016 Nov 30.
We developed a barometer applicable to a small space, to assess oral and pharyngeal functions. Negative oral pressure during rest and pressure changes during swallowing were measured in a space between the palate and tongue (STP). Twenty volunteers were asked to sit in a chair in a relaxed upright position. A sensor was placed on the posterior midline of hard palate. Recording commenced just before subjects closed their lips and continued. Subjects were asked to swallow saliva and keep the apposition. Finally, subjects were asked to open their mouth. Recordings were performed five times, and 5 s of continuous data in each phase was averaged. To verify the reliability of the system, the same procedure was accomplished with twin sensors. When the jaw and lips were closed, the pressure slightly decreased from atmospheric pressure (-0·17 ± 0·24-kPa). After swallowing, the pressure in STP showed more negative value (-0·50 ± 0·59-kPa). There is a significant difference between the values in open condition and after swallowing (P < 0·001) and between values after swallowing and final open condition (P < 0·05). Twin sensor showed almost the same trajectories of pressure changes for all the recordings. Obtained negative pressure might generate about 0·71-N of force and would be enough to keep the tongue in the palatal fossa at rest. The system detected large negative/positive pressure changes during swallowing. We conclude this system may be a tool to evaluate oral functions.
我们开发了一种适用于小空间的气压计，用于评估口腔和咽部功能。在腭部和舌头之间的空间（STP）测量静息时的口腔负压和吞咽时的压力变化。20名志愿者被要求放松地笔直坐在椅子上。将一个传感器放置在硬腭后中线处。在受试者闭嘴前开始记录并持续进行。要求受试者吞咽唾液并保持贴合状态。最后，要求受试者张开嘴。记录进行5次，每个阶段5秒的连续数据取平均值。为了验证该系统的可靠性，使用双传感器完成相同的程序。当颌骨和嘴唇闭合时，压力从大气压略有下降（-0.17±0.24kPa）。吞咽后，STP中的压力显示出更负值（-0.50±0.59kPa）。张口状态下的值与吞咽后的的值之间存在显著差异（P<0.001），吞咽后的的值与最终张口状态下的值之间也存在显著差异（P<0.05）。双传感器在所有记录中显示出几乎相同的压力变化轨迹。获得的负压可能产生约0.71N的力，足以使舌头在静息时保持在腭窝内。该系统在吞咽过程中检测到较大的正负压力变化。我们得出结论，该系统可能是一种评估口腔功能的工具。
