骨格性開咬症例の矯正歯科治療前後における構音の変化に関する研究
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概要
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The purpose of this study was to elucidate degree of speech obstruction in the patient with skeletal open bite before and after the orthodontic treatment including surgical operation. Articulation of the patient (1 male and 9 females) was compared with that of person with normal bite as control (1 male and 4 females). The articulation was successively examined at the first visit to our clinic, the end of orthodontic treatment (immediately before the operation), and 1,3,and 6 months after the operation. Subjective disorder of the patient was examined by questionnaires, and objective disorder was examined by intelligibility test. Moreover, articulations of vowels and consonants were analyzed by a sound analysis system. The results were as follows : Results of the questionnaires obtained from the patient showed the difficulty to pronounce in dentals and alveolars. According to the intelligibility test, the patient had some obscure compared with that of normal person at the first visit to our clinic. The obstruction became worse until 1 month after the operation, and then improved gradually after the operation. The obscurity of consonants improved after the operation and the manner of different improvement was shown by the articulation point. The abnormal articulation point of vowels estimated from the relationship between the first and first-second formant was gradually improved as that of the normal person, especially in sound /i/. The weak pressure of sound /s/ of the patient became strong compared with that before the operation. The strength of plosive was weak compared with that of normal person, especially in /b/, and this improved gradually after the operation. The present study has shown the improving process of the patient articulation before and after the operation, and may be applicable to a guidance of stability after the orthodontic and orthognathic treatment.
- 福岡歯科大学学会の論文
- 1998-09-30
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関連論文
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- 不正咬合者における発音障害の調査 : 発語明瞭度を用いて
- 骨格性開咬症例の矯正歯科治療前後における構音の変化に関する研究(福岡歯科大学大学院歯学研究科博士論文内容の要旨及び審査結果の要旨)
- 骨格性開咬症例の矯正歯科治療前後における構音の変化に関する研究