摘要
本文目的是对成人骨性Ⅲ类错■畸形治疗后语音功能的改变进行研究。9名此类畸形的成年患者作为研究对象,对其治疗前和治疗后两年的语音功能进行主客观对比分析。研究表明治疗前有语音功能异常的患者经矫治后语音功能有明显改善或恢复正常。正颌手术对治疗前不存在语音问题患者的语音功能无不良影响。语音声学分析表明治疗后zh、ch、sh、z等辅音的频率下限比治疗前有明显上移、低频成分基本消失。这些辅音的声学特性与正常音的声学特性接近。以上说明在口颌系统的解剖结构恢复正常的同时,口腔语音功能也有明显改善。
The purpose of this study was to investigate the change of articulation in Class III malocclusion after treatment. The postoperative articulation of nine skeletal Class III malocclusion was reevaluated by listener judgement and acoustic analysis. It was showed that the articulation of all subjects with preoperative disordered articulation was improved significantly after treatment. There was no negative effect of orthognathic surgery on speech production in the patients who had no preoperative disordered articulation. In acoustic analysis,comparing with the disordered ones before treatment, the lower boundary of frequencies of the consonants shifted up after treatment,as well as the lower frequency components were disappeared. It was suggested that the structural improvement of the orthognathic system would result in the improvement of articulation simultaneously.
出处
《现代口腔医学杂志》
CAS
CSCD
1998年第4期290-291,共2页
Journal of Modern Stomatology
