权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Suppression of nocturnal bruxism by decreasing tongue space

通过减少舌间隙抑制夜间磨牙症

基本信息

批准号：
11671930
负责人：
MINAGI Shogo
金额：
$ 2.5万
依托单位：
Okayama University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2000
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11671930/
关键词：
TMJ bruxism splint palatal appliance MPD syndrome 舌房睡眠

项目摘要

Several designs of palatal appliance have been reported for the treatment of craniomandibular disorders. However, the effect of these appliances has not yet been fully clarified. This study aimed to reveal the effect of palatal appliances of different design on masseter muscle activity during steep.Four volunteers(3 women and 1 man, mean age 36.0 years)were used in this study. For each subject, four different types of palatal appliances were used. The palatal appliances were 1)horse shoe type(1mm thick), 2)thin appliance which covered the whole palate(1mm thick), 3)thick appliance which filled the palatal concavity, and 4)appliance with the half thickness of the third appliance.These appliances were worn for one week for each in a randomized sequence with 1 week interval between each appliance. Right masseter muscle EMG was recorded three nights per week at home. EMG signal longer than 0.25 sec was classified as a burst and a signal shorter than 0.25 sec was classified as a brief burst of fragmentary myoclonus(FW). Mean number of burst per hour for four subjects were 7.99±7.32, 3.52±1.95, 5.90±3.99, 2.87±2.87 and 9.96±6.02 for base line, appliance 1, 2, 3 and 4, respectively. Mean number of FM per hour were 136.86±69.88, 90.53±41.19, 99.49±39.29, 71.66±24.66 and 144.39±42.97, respectively. From these results, it was suggested that thick palatal appliance suppressed the masseter muscle activity during sleep most effectively.

已有几种设计的腭矫治器被报道用于治疗颅颌关节紊乱病。然而，这些器具的效果还没有完全弄清楚。本研究以4名志愿者(3女1男，平均年龄36.0岁)为研究对象，探讨不同设计的腭矫治器对咬肌肌电活动的影响。对于每个受试者，都使用了四种不同类型的腭部矫治器。上颌矫治器为1)马蹄型(1 mm厚)，2)薄矫治器(1 mm厚)，3)厚矫治器(填满腭窝)，4)半厚(3)矫治器，每件矫治器随机配戴一周，每件矫治器之间间隔1周。每周三晚在家中记录右咬肌肌电。大于0.25秒的EMG信号被归类为阵发性，小于0.25秒的信号被归类为短阵发的碎片性肌阵挛(FW)。基线、矫治器1、2、3和4的平均每小时猝发次数分别为7.99±7.32、3.52±1.95、5.90±3.99、2.87±2.87和9.96±6.02。平均每小时FM次数分别为136.86±69.88次、90.53±41.19次、99.49±39.29次、71.66±24.66次、144.39±42.97次。这些结果表明，厚腭矫治器对睡眠中咬肌活动的抑制效果最好。