Special Kinds of Dysglossia, Resonance Disorders and Velopharyngeal Insufficiency
摘要
According to Hanson and Andrianopoulos (1982), orofacial dysfunctions (orofacial myofunctional disorders, OMD) refer to abnormal resting labial-lingual posture of the orofacial musculature, atypical chewing and swallowing patterns, dental malocclusions, blocked nasal airways and speech problems. OMDs occur in children as well as in adults and are found at every age.