Research of occurrence factors on articulation disorders in cleft palate children

采用Sound Digital Filter和Sound Digital Spectro Editor对15例腭裂儿童(CP组)和5例功能性发音障碍儿童(FAD组)进行了日语元音、爆发音和摩擦音的辨别识别。结果表明，无论是在识别被处理的元音的实验中，还是在辨别模拟成声门停止音的发音的实验中，两组之间都没有发现差异。当对摩擦音的频率分布进行处理并使其逐渐失真时，腭裂儿童以较小的畸变量判断合适的声音，并在语音障碍治疗前后进行上述实验，并进行比较。在两组中，差异均未被识别为两组中的任何一组以及在识别EX…中元音的更多周边。功能性发音障碍患儿经摩擦音治疗后辨别能力转好。而与腭裂组的区别不再被认识到。对70例唇腭裂患儿行二期腭裂联合Hotz‘s钢板成形术的临床资料进行统计分析。腭裂成形术后发生的发音障碍的种类根据腭咽闭合不全的程度而有所不同，直到儿童早期，大约四岁。重度腭咽闭合不全患儿声门停止，轻度腭咽闭合不全患儿出现腭化发音。由此可见，功能性发音障碍儿童的发音能力低于腭裂患儿。比较腭裂患儿的发音能力，认为腭咽闭合功能障碍的发生因素较少。对腭裂和功能性发音障碍患者常见的侧发音和鼻咽发音进行了临床统计分析。结果提示，侧方发音为器质性发音障碍的患者，目前所认为的功能性发音障碍均已得到控制。认为腭咽闭合功能不全是导致腭裂患者鼻咽闭合的主要原因。较少

Thc cxpcriments of discrimination and identification were carried out with proccssed Japanese vowels, explosive sounds and fricative sounds by using Sound Digital Filter <encircledR> and Sound Digital Spectro Editor <encircledR> targeting 15 cleft palate children (CP group) and 5 Functional articulation disorder children (FAD group). As the results that both in the experiment of identification of the vowels which formant were processed and in the experiment of discrimination of die sounds which imitated into glottal stop sound, the difference were not recognized between two groups. When the frequency distribution of fricative sounds were processed and made to distort gradually, cleft palate children judged the appropriate sounds in the amount of little distortion.The above expcriments were carried out before and after treatment toward articulation disorder and compared them. both in two groups, the differences were not recognized as either of the groups as well in the identilication ex … More periments of the vowels. Functional articulation disorder children showed that the discrimination ability turned good afier the treatment in die fricative sounds. and the difference from the cleft palate group stopped being recognized. All the differences weren't recognized though cleft palate children was classified by the degree of velopharyngeal competency and articulation disorder and compared.Clinical statistics about 70 patients with cleft lip and palate children following two-stage palatoplasty combined with Hotz's plate was assessed. The kind of articulation disorder which occurred after veloplasty were varied according to the degree of velopharyngeal incompetency until early' childhood about four years old. Glottal stop were occured in case of serious velopharyngeal incompetency, palatalized articulation occurred in case of slight one.From die above, the sound distinction ability in functional articulation disorder children was thought to be lower than cleft palate children. It was compared in cleft palate children, there were few factors that the abilities on sound distinction, occurrcnce factor of articulation disorder was thought velopharyngeal incompetency to influent greatly.Sonic clinical statistics were analyzed about lateral articulation and nasopharyngeal articulation which often occured in cleft palate patients and functional articulation disorder patients. Results suggested that the patients with lateral articulation as organic articulation disorder which is thinking about so far as the functional articulation disorder were contained. The occurrence cause of nasopharyugeal articulation in cleft palate patients was supposed that velopharyngeal incompetency was the most important factor. Less