Unerupted lower third molars and their influence on fractures of the mandibular angle and condyle.
Br J Oral Maxillofac Surg
; 50(5): 443-6, 2012 Jul.
Article
em En
| MEDLINE
| ID: mdl-21764189
ABSTRACT
Our aim was to assess the influence of the presence and state of impaction of mandibular third molars on the incidence of fractures of the mandibular angle and condyle. We designed a retrospective study of patients who presented for the treatment of mandibular fractures from January 2006 to April 2011. The independent variables were the presence and degree of impaction of lower third molars, and the outcome variables were the incidence of fractures of the mandibular angle and condyle. The information was acquired from hospital records and panoramic radiographs. Personal data included age, sex, mechanism of injuries, and number of fractures of the mandibular angle and condyle. We studied 110 fractures of the mandibular condyle and 80 of the angle. The incidence of fractures of the mandibular angle was higher in the group with incompletely erupted third molars (37/80, p<0.001) and that of condylar fractures was higher in the group without (67/110, p<0.001). An incompletely erupted third molar reduces the risk of condylar fractures and increases the risk of fractures of the mandibular angle.
Texto completo:
1
Coleções:
01-internacional
Temas:
Geral
Base de dados:
MEDLINE
Assunto principal:
Dente Impactado
/
Côndilo Mandibular
/
Fraturas Mandibulares
/
Dente Serotino
Tipo de estudo:
Etiology_studies
/
Observational_studies
/
Risk_factors_studies
Limite:
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Br J Oral Maxillofac Surg
Ano de publicação:
2012
Tipo de documento:
Article
País de afiliação:
Índia