Effects of bimaxillary surgery and mandibular setback surgery on pharyngeal airway measurements in patients with Class III skeletal deformities.
Am J Orthod Dentofacial Orthop
; 131(3): 372-7, 2007 Mar.
Article
em En
| MEDLINE
| ID: mdl-17346593
INTRODUCTION: The purpose of this study was to compare the short-term and long-term effects of bimaxillary surgery with those of mandibular setback surgery concerning pharyngeal airway measurements at 3 levels: nasopharynx, oropharynx, and hypopharynx. METHODS: The sample included 66 Japanese women in 2 groups who had been diagnosed with Class III skeletal deformities and had undergone surgical-orthodontic treatment. Those in group A (35 patients) underwent bilateral sagittal split ramus osteotomies; those in group B (31 patients) underwent LeFort I procedures with bilateral sagittal split ramus osteotomies. Lateral cephalograms were assessed within 6 months before surgery and at short-term (3-6 months after surgery) and long-term (at least 2 years after surgery) follow-ups. RESULTS: In group A, the pharyngeal airway was constricted significantly at the oropharyngeal and hypopharyngeal levels at both the short-term and the long-term follow-ups. In group B, significant changes were shown at the 3 pharyngeal levels at the short-term follow-up, whereas no significant changes were shown at the long-term follow-up. CONCLUSIONS: These results indicate that, when possible, bimaxillary surgery rather than only mandibular setback surgery is preferable to correct a Class III deformity to prevent narrowing of the pharyngeal airway space, a possible predisposing factor in the development of obstructive sleep apnea.
Buscar no Google
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Faringe
/
Osteotomia de Le Fort
/
Apneia Obstrutiva do Sono
/
Má Oclusão Classe III de Angle
/
Mandíbula
/
Maxila
Tipo de estudo:
Clinical_trials
/
Diagnostic_studies
/
Etiology_studies
/
Observational_studies
/
Prognostic_studies
Limite:
Adolescent
/
Adult
/
Female
/
Humans
Idioma:
En
Revista:
Am J Orthod Dentofacial Orthop
Assunto da revista:
ODONTOLOGIA
/
ORTODONTIA
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
China