Skeletal stability after surgical correction of mandibular prognathism by vertical ramus osteotomy

The purpose of the study was to assess skeletal stability following combined surgical-orthodontic management of 52 adults with severe mandibular prognathism. Lateral cephalograms taken 1 week before surgery, within 1 week post-surgery and approximately 1 year after operation were studied by means of...

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Bibliographic Details
Published in:European journal of orthodontics 1992-04, Vol.14 (2), p.117-124
Main Authors: Athanasios, Athanasios E., Mavreas, Dimitrios, Toutountzakis, Nick, Ritzau, Martin
Format: Article
Language:English
Subjects:
Adolescent
Adult
Bone Wires
Cephalometry
Dentistry
Evaluation Studies as Topic
Female
Humans
Male
Malocclusion - pathology
Malocclusion - therapy
Mandible - pathology
Mandible - surgery
Osteotomy - methods
Prognathism - surgery
Rotation
Stainless Steel
Time Factors
Tooth Movement Techniques
Vertical Dimension
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Description
Summary:The purpose of the study was to assess skeletal stability following combined surgical-orthodontic management of 52 adults with severe mandibular prognathism. Lateral cephalograms taken 1 week before surgery, within 1 week post-surgery and approximately 1 year after operation were studied by means of eight variables and a constructive stable reproducible reference system. The surgical procedure of choice was a bilateral vertical ramus osteotomy through an extra-oral approach. In all cases the condyles were left passively in the articular fossa and no attempt at their active repositioning was made. The patients were randomly allocated to an osteosynthesis or non-osteosynthesis group with regard to intramandibular fixation. Intermaxillary fixation lasted 6 weeks and an interocclusal wafer was used in all cases during this period. The findings of this study showed that during the post-operative period there was a trend for posterior rotation of the mandibular corpus (P
ISSN:0141-5387
1460-2210
DOI:10.1093/ejo/14.2.117