Hiraba Hisao, Yamaoka Masaru, Fukano Mika, Fujiwara Tadao, Ueda Kouichirou
Department of Dysphasia Rehabilitation, Division of Functional Morphology, Dental Research Center, Tokyo, Japan.
Somatosens Mot Res. 2008 Dec;25(4):222-9. doi: 10.1080/08990220802611649.
Patients with low-back pain can be evaluated immediately by means of an electrical tool that produces bony vibration to the lumbar spinal processes (Yrjama M, Vanharanta H. Bony vibrotactile stimulation: A new, non-invasive method for examining intradiscal pain. European Spine Journal 1994;3:233-235). In the rehabilitation of masticatory disturbance and dysphagia, an electric toothbrush is commonly used as an oral motor exercise tool for the facilitation of blood flow and metabolism in the orofacial region in Japanese hospitals. However, subjects receiving vibration in the facial regions reported increased salivary secretion. We attempted to develop an oral motor exercise apparatus modified by a headphone headset that was fixed and could be used for extended periods. The vibration apparatus of the heating conductor is protected by the polyethyle methacrylate (dental mucosa protective material), and electric motors for vibration control of the PWM circuit. We examined the amount of salivation during vibration stimuli on the bilateral masseter muscle belly, using a cotton roll positioned at the opening of the secretory duct for 3 min. Although the quantity of salivation in each subject showed various and large fluctuations in the right and left sides of the parotid and submandibular and sublingual glands, one or more of the salivary glands were effectively stimulated by 89 Hz vibration. The reported apparatus will be useful as an additional method in orofacial rehabilitation.
下背痛患者可通过一种能对腰椎棘突产生骨振动的电子工具立即进行评估（Yrjama M，Vanharanta H. 骨振动触觉刺激：一种检查椎间盘内疼痛的新型非侵入性方法。《欧洲脊柱杂志》1994年；3：233 - 235）。在咀嚼障碍和吞咽困难的康复治疗中，在日本医院，电动牙刷通常被用作一种口腔运动锻炼工具，以促进口面部区域的血流和新陈代谢。然而，在面部区域接受振动刺激的受试者报告唾液分泌增加。我们试图开发一种经头戴式耳机改装的口腔运动锻炼装置，该头戴式耳机是固定的，可长时间使用。发热导体的振动装置由聚甲基丙烯酸乙酯（口腔黏膜保护材料）以及用于PWM电路振动控制的电动马达保护。我们使用放置在分泌导管开口处的棉卷3分钟，来检测双侧咬肌肌腹在振动刺激期间的唾液分泌量。尽管每个受试者的唾液分泌量在腮腺、下颌下腺和舌下腺的左右两侧呈现出各种较大的波动，但89赫兹的振动有效地刺激了一个或多个唾液腺。所报道的该装置将作为口面部康复中的一种辅助方法发挥作用。
