title: Occlusal and orofacial myofunctional evaluation in children with anterior open bite before and after removal of pacifier sucking habit.
abstract: The aim of this study was to evaluate occlusal and orofacial myofunctional characteristics in children with primary dentition and anterior open bite, before and after removal of pacifier sucking habit. A dentist checked anterior open bite, overjet and upper intercanine distance and a speech therapist evaluated posture and tonus of lips and tongue, cheek tonus, swallowing, breathing and speech of twenty-seven 3-5 year-old children at baseline and 3 months later. Habit removal propitiated a mean reduction of 1.97 mm on anterior open bite (P < .001), promoted improvement of lip posture (P = .03), favored nasal breathing (P =. 008) and reduced the occurrence of tongue interposition during swallowing (P = .008). Lack of proper tongue rest posture was capable of preventing spontaneous correction of anterior open bite (odds ratio 17.50).
authors.affiliation: Departamento de Ortodontia e Odontopediatria, Facultade de Odontologia da Universidade de São Paulo, USP.
authors.forename: Anna Paula
authors.initials: AP
authors.lastname: Verrastro
authors.forename: Fabiane Miron
authors.initials: FM
authors.lastname: Stefani
authors.forename: Célia Regina Martins Delgado
authors.initials: CR
authors.lastname: Rodrigues
authors.forename: Marcia Turolla
authors.initials: MT
authors.lastname: Wanderley
mesh_terms: D000704:Analysis of Variance; D002675:Child, Preschool; D006801:Humans; D016015:Logistic Models; D024343:Open Bite / Q000209:etiology / Q000503:physiopathology*; D041361:Pacifiers / Q000009:adverse effects; D013391:Sucking Behavior