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- guttrual dyslalia 喉性构语困难
- Students with mental retardation were the most frequent, followed by students with dyslalia, then autism, and attention deficit and hyperactivity disorder. 结果发现学生的疾病种类以智障最多，共64名：构音困难22名，自闭症12名，过动症12名，听障9名，脑性麻痹4名，唐氏症4名，其他诊断26名。
- labial dyslalia 唇性构语困难
- guttural dyslalia 喉性构语困难
- lingual dyslalia 舌性构语困难
- dental dyslalia 牙性构语困难
- dyslalia 构语困难,构音困难
