The assessment of the short- and long-term changes in the condylar position following sagittal split ramus osteotomy (SSRO) with rigid fixation.
J Oral Rehabil
; 37(4): 262-70, 2010 Apr.
Article
em En
| MEDLINE
| ID: mdl-20113391
ABSTRACT
The purpose of this study was to compare the short- and long-term changes in condylar position related to the glenoid fossa, and skeletal and occlusal stability after orthognathic surgery. All of the study patients were assessed by cone-beam computed tomography images for condylar rotational changes and anteroposterior position in the pre-surgery, post-surgery and post-retention period. The condylar positions were evaluated on three planes axial, coronal and sagittal. In the skeletal and occlusal measurements, there was no significant difference between the post-surgery group and the post-retention group. After sagittal split ramus osteotomy (SSRO), the condyle on the axial plane rotated inward (P < 0.05) and maintained during the post-retention period. In the anteroposterior condylar position related to the glenoid fossa, the condyles had changed from the anterior position in the pre-surgery group to a concentric position in the post-surgery group and then returned to the anterior position in the post-retention groups. These results suggested that the changed anteroposterior condylar position in the glenoid fossa after SSRO with rigid fixation had moved from a concentric to anterior position for post-retention period.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Prognatismo
/
Articulação Temporomandibular
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Remodelação Óssea
/
Mandíbula
/
Côndilo Mandibular
Tipo de estudo:
Observational_studies
Limite:
Adult
/
Female
/
Humans
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Male
Idioma:
En
Revista:
J Oral Rehabil
Ano de publicação:
2010
Tipo de documento:
Article