Skeletal relapse pattern after sagittal split ramus osteotomy of mandibular prognathic patient
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons
;
: 21-30, 2001.
Article
in Korean
| WPRIM
| ID: wpr-784308
ABSTRACT
relapse pattern of the mandibular prognathic patients after mandibular set back surgery by sagittal split ramus osteotomy. The horizontal and vertical position of the cephalometric points were measured before, after surgery and after one-year follow up period. The next, the positional change of the proximal and distal mandibular segment were evaluated respectively. The obtained results were as follows; 1. The horizontal and vertical position of Cd was not changed before and after surgery, and it was maintained its original position during the observation periods. 2. As the mandibular prognathism of the patients was severe before surgery, the more skeletal relapse tendency was observed during follow-up period (p<0.05). 3. As the horizontal positional change of the mandible which was obtained by mandibular set-back surgery was large, the more horizontal relapse tendency was observed during follow-up period (p<0.05). 4. The corpus axis angle decreased by sagittal split ramus osteotomy (p<0.01), but it was kept its reoriented position during follow-up period. 5. During the follow-up period after mandibular set-back by sagittal split ramus osteotomy, the forward relapse of mandible correlated with not only the forward rotation of the proximal segment but also the forward movement of the distal segment (p<0.05).
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Prognathism
/
Recurrence
/
Axis, Cervical Vertebra
/
Follow-Up Studies
/
Osteotomy, Sagittal Split Ramus
/
Mandible
Type of study:
Observational study
/
Prognostic study
Limits:
Humans
Language:
Korean
Journal:
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons
Year:
2001
Type:
Article
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