Longitudinal evaluation of the intermaxillary relationship in Class III malocclusions.
Angle Orthod
; 76(6): 955-61, 2006 Nov.
Article
em En
| MEDLINE
| ID: mdl-17090168
OBJECTIVE: To analyze the sagittal, vertical, and transverse relationship of the maxilla and mandible in Japanese girls with Class III malocclusions. MATERIALS AND METHODS: This longitudinal study utilized biannual posteroanterior and lateral cephalograms of 44 untreated subjects from age 8 to 14 years (Class I, 23 girls; Class III, 21 girls). Sagittal and vertical growths were analyzed on the basis of lateral cephalograms, and transverse growth was analyzed on the basis of posteroanterior cephalograms. RESULTS: There was no significant difference in sagittal intermaxillary relationships in Class III malocclusion from age 8 to 14 years, whereas significant difference in vertical and transverse intermaxillary relationships appeared with ages during this period. When comparing Class III to Class I malocclusions at the same age point, there were significant differences in sagittal and transverse intermaxillary relationships, whereas significant difference in vertical intermaxillary relationship appeared after 12 years of age. CONCLUSION: The results suggest that the sagittal intermaxillary relationships in Class III malocclusions were established before 8 years of age and remained through puberty and that the vertical and transverse intermaxillary relationships in Class III malocclusions changed with ages from 8 to 14 years.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Má Oclusão Classe III de Angle
/
Desenvolvimento Maxilofacial
Tipo de estudo:
Observational_studies
Limite:
Adolescent
/
Child
/
Female
/
Humans
País/Região como assunto:
Asia
Idioma:
En
Revista:
Angle Orthod
Ano de publicação:
2006
Tipo de documento:
Article
País de afiliação:
Japão