Effect of Placement of a Speech Appliance on Levator Veli Palatini Muscle Activity during Speech
Effect of Placement of a Speech Appliance on Levator Veli Palatini Muscle Activity during Speech
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言语器具的放置对言语过程中提肌腭肌活动的影响
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
T. Wada
中科院分区：
文献类型：
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作者：
T. Tachimura;K. Nohara;T. Wada
目的探讨腭帆提肌肌电活动是否随矫治器的放置而改变，以及这种改变是否与矫治器的类型有关。设计肌电图（EMG）进行生产过程中的语音样本在两种条件下：与放置和删除的语音器具。语音样本为元音/ω/和辅音-元音（ω）音节，包括鼻音、爆破音、摩擦音和破擦音辅音。日本大坂大学牙科医院牙科系口腔面部疾病科。参与者受试者是6例修复腭裂和腭咽功能不全（VPI）;三个常规佩戴腭提升假体，以纠正边界VPI，和其他三个戴着一个语音装置的混合体，包括一个咽球和腭提升。干预每个病人被要求产生每个语音样本的放置和删除各自的器具的条件。主要结果测量平滑的肌电信号的腭帆提肌记录和没有装置在五个重复的每个语音样本。在每个实验条件下，比较所有受试者的放置和移除条件之间以及两个受试者组之间的峰值平滑提肌肌电图的平均值。结果矫治器安装后，两组受试者的提肌活动范围均低于未安装时的提肌活动范围。此外，在放置条件下的间隔小于在移除条件下的间隔。结论语音矫治器可防止VPI引起的鼻音过重或鼻排气，或两者兼有，因为机械性阻塞了腭咽，改变了腭咽功能。
Objective The purposes of this electromyographic study were to examine whether levator veli palatini muscle activity during speech can be changed with placement of a speech appliance and to clarify whether or not the change is related to the type of speech appliance used. Design Electromyography (EMG) was performed during production of speech samples in two conditions: with placement and with removal of a speech appliance. Speech samples were the vowel /ω/ and consonant-vowel (ω) syllables, including nasal, plosive, fricative, and affricate consonants. Setting Division for Oral-Facial Disorders, Faculty of Dentistry, Osaka University Dental Hospital, Japan. Participants Subjects were six patients with repaired cleft palate and velopharyngeal inadequacy (VPI); three routinely wore a palatal lift prosthesis to correct borderline VPI, and the other three wore a speech appliance hybrid that consisted of a pharyngeal bulb and a palatal lift. Interventions Each patient was asked to produce each speech sample in both conditions of placement and removal of their respective appliances. Main outcome Measures Smoothed EMG signals of the levator veli palatini muscle were recorded with and without the appliance during five repetitions of each speech sample. The average value of peak smoothed levator EMG was compared between placement and removal conditions for all subjects and between the two subject groups in each experimental condition. Results With a speech appliance in place, the range of levator activity was distributed in a portion lower than that in the removed condition for subjects in both appliance groups. In addition, the intervals were smaller in the placement condition than in the removed condition. Conclusion A speech appliance may prevent hypernasality, nasal emission of air, or both associated with VPI because of mechanical obturation of the velopharynx and an alteration in velopharyngeal function.
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DOI：
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发表时间：
1983
期刊：
The Cleft palate journal
影响因子：
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作者：
Beery,QC;Rood,SR;SchrammJr,VL
通讯作者：
SchrammJr,VL
提腭帆肌活动与鼻内气压变化的关系。
DOI：
10.1597/1545-1569_1993_030_0361_lvpmai_2.3.co_2
发表时间：
1993
期刊：
The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association
影响因子：
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作者：
Kuehn,DP;Moon,JB;Folkins,JW
通讯作者：
Folkins,JW
提腭帆肌活动与口内气压变化的关系。
DOI：
10.1044/jshr.3706.1260
发表时间：
1994
期刊：
Journal of speech and hearing research
影响因子：
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作者：
Kuehn,DP;Moon,JB
通讯作者：
Moon,JB
腭裂受试者的提腭帆肌活动与口内气压变化相关。
DOI：
10.1597/1545-1569_1995_032_0376_lvpmai_2.3.co_2
发表时间：
1995
期刊：
The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial Association
影响因子：
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作者：
Kuehn,DP;Moon,JB
通讯作者：
Moon,JB