齿间音θ在异常语音治疗中的作用

The role of inter-dental consonant θ in treating articulation disorders

目的:通过齿间音θ使舌前伸及牙对舌的牵制作用建立准确发音部位,以改变异常舌位引起的语音障碍。方法:经本中心诊断为异常语音障碍需语音治疗的患者157例(腭裂术后与非腭裂);男111例,女46例,年龄5～28岁。其中,咽摩擦音29例,腭化音73例,侧化音36例,腭化音+侧化音19例。在训练舌尖前音s时,让患者舌尖伸出上、下牙之间,上、下牙轻咬住舌尖,使舌体平展稳定发出齿间音θ,待舌体平稳前伸有效后,再让舌逐渐回放至下前牙舌侧,发出正确舌尖前音s。结果:按正确要求训练的患者均取得明显效果。其中,咽摩擦音效果最显著,有效率为96.55%(28/29),其余依次为腭化音91.78%(67/73)、腭化音+侧化音84.21%(16/19)、侧化音77.8%(28/36)。结论:齿间音θ的训练方法为咽摩擦音、腭化音、侧化音等异常语音的治疗提供了有效的手段。

PURPOSE：The aim of this study was to rectify deviant tongue position and make accurate pronunciation via making use of the protrusion and containment effect of interdental consonant [θ] for the tongue.METHODS：One hundred and fifty-seven patients with articulation disorders（postpalatoplasty and non-cleft palate） which were diagnosed as velopharyngeal sufficiency were included in this study.There were 111 males and 46 females,aging from 5 to 28 years old.Among them,29 patients were pharyngeal fricative,73 patients were palatalized misarticulation,36 patients were lateralization misarticulation and 19 patients were misarticulation mixed with palatalized and lateralization.During the treatment,the patients were asked to stick out the tongue to make the tooth gently biting it and pronounce a interdental consonant θ smoothly.When the tongue was fully protracted,the tongue was retracted to the lingual side of mandibular anterior teeth to produce a normal apex linguae consonant [s].RESULTS：This training method had a significant effect for patients with articulation disorders.The effect was most significant for patients with pharyngeal fricative,with a effective rate of 96.55%（28/29）,followed by 91.78%（67/73） in palatalized misarticulation,84.21%（16/19） in palatalized mixed with lateralization misarticulation,and 77.78%（28/36） in lateralization misarticulation.CONCLUSION：Training the pronunciation of interdental consonant [θ] may control the retrusion,arching and curling movement of tongue,which therefore provides an effective treatment for articulation disorders such as pharyngeal fricative,palatalized and lateralization misarticulation.