title: [Comparative study of the intraoral pressure variations in normal subjects and in maxillofacial dysmorphosis patients].
abstract: The Authors examined the modification during swallow of the negative pressure in various areas of the mouth in normal individuals and in cases of malocclusion and malformations. A specially modified electronic device was used, and the measurements of compared in 25 cases. Abnormalities in pressure variation were found in cases of: 1) cleft of the lip and/or of the palate; 2) class III malocclusion presenting a law posture of the tongue; 3) lateral open-bite. No relevant alteration was found in cases of class II malocclusion. It could be suggested that the negative pressure might be one component of the neuromuscular feed-back. The values obtained in this study seem to be slightly higher than those of other Authors.
mesh_terms: D002648:Child; D002675:Child, Preschool; D002971:Cleft Lip / Q000503:physiopathology*; D002972:Cleft Palate / Q000503:physiopathology*; D003679:Deglutition; D003766:Dental Occlusion; D006801:Humans; D008310:Malocclusion / Q000503:physiopathology*; D008365:Manometry / Q000295:instrumentation; D008445:Maxillofacial Development; D011312:Pressure; D012016:Reference Values
vernacular_title: Studio comparativo delle variazioni di pressione endorale in soggetti normali e con dismorfosi maxillo-facciali.