| Interferences between mandibular proximal and distal segments in orthognathic surgery for patients with asymmetric mandibular prognathism depending on different osteotomy techniques. | |
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MedLine Citation:
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PMID: 20382051 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: The aim of this study was to evaluate, using computer simulation, the amount of interference between the proximal and distal segments of the mandible incurred by 3 different osteotomy methods. STUDY DESIGN: With the 3-dimensional facial computerized tomography data of 20 patients showing mandibular prognathism with asymmetry, simulation surgeries of conventional sagittal split ramus osteotomy (SSRO), intraoral vertical ramus osteotomy (IVRO), or short lingual osteotomy (SLO) was performed. The distal segments were moved backward (3, 6, or 9 mm) and rotated (2 degrees, 4 degrees, or 6 degrees). The amounts of interference between the proximal and distal segments of the mandible were measured and statistically analyzed. RESULTS: Conventional SSRO demonstrated the greatest interference between the proximal and distal segments of the mandibles (P < .01), followed by IVRO and SLO. SLO showed less interference than IVRO in mild asymmetry cases (P < .05), but no difference was noted in severe prognathism and asymmetry cases. CONCLUSION: SLO is the most favorable osteotomy method for reducing displacement of the proximal segment in mandibular prognathism with asymmetry. |
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Authors:
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Hoon Joo Yang; Woo Jin Lee; Won Jin Yi; Soon Jung Hwang |
Publication Detail:
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Type: Journal Article Date: 2010-04-09 |
Journal Detail:
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Title: Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics Volume: 110 ISSN: 1528-395X ISO Abbreviation: Oral Surg Oral Med Oral Pathol Oral Radiol Endod Publication Date: 2010 Jul |
Date Detail:
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Created Date: 2010-07-08 Completed Date: 2010-10-14 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9508562 Medline TA: Oral Surg Oral Med Oral Pathol Oral Radiol Endod Country: United States |
Other Details:
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Languages: eng Pagination: 18-24 Citation Subset: D; IM |
Copyright Information:
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Copyright (c) 2010 Mosby, Inc. All rights reserved. |
Affiliation:
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Department of Oral and Maxillofacial Surgery, School of Dentistry, Seoul National University, Seoul, Korea. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Cephalometry
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methods Computer Simulation Dental Arch / pathology, surgery Facial Asymmetry / surgery* Female Humans Image Processing, Computer-Assisted / methods Imaging, Three-Dimensional / methods Male Mandible / pathology, surgery* Mandibular Condyle / pathology Models, Anatomic Orthognathic Surgical Procedures / methods* Osteotomy / classification, methods* Patient Care Planning Prognathism / surgery* Rotation Tomography, X-Ray Computed / methods Treatment Outcome User-Computer Interface |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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