| Long-term skeletal effects of mandibular symphyseal distraction osteogenesis. An implant study. | |
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MedLine Citation:
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PMID: 16043467 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The purpose of this study was to investigate the long-term skeletal effects of mandibular symphyseal distraction osteogenesis (MSDO) with a tooth- and bone-borne distraction device, analysed using the metallic implant method. The study sample comprised 20 patients between 15.8 and 25 years of age, with a mean age of 20.01 +/- 2.25 years at the start of treatment. In 12 subjects, titanium implants were inserted in the mandible to analyse mandibular skeletal changes in the short and long term. A custom-made intraoral, tooth- and bone-borne distractor was designed and used. After a latency period of 7 days, the distractor was activated twice daily, by a total amount of 1 mm. Postero-anterior (PA) cephalograms were obtained at the start of distraction and at the end of consolidation (94.95 +/- 5.79 days after surgery) and follow-up periods (21.5 +/- 4.6 months after consolidation). The data were analysed statistically using paired t-tests. The mean amount of screw activation was 8.10 +/- 1.68 mm. The inter-symphyseal and inter-molar implant distances and the bimolar width significantly increased during the consolidation period (P < 0.001) and were maintained at the end of the follow-up. On the other hand, the bicondylar width was markedly decreased (P < 0.05), while no significant skeletal changes were observed in bigonion and biantigonion widths, inter-ramal implant distance, or inter-ramal and implant angles at the end of the consolidation period. The long-term findings of this study indicate that MSDO provides an efficient and stable non-extraction treatment alternative, mainly by increasing the anterior mandibular skeletal and dental arches. |
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Authors:
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Haluk Iseri; Siddik Malkoç |
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Publication Detail:
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Type: Journal Article Date: 2005-07-25 |
Journal Detail:
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Title: European journal of orthodontics Volume: 27 ISSN: 0141-5387 ISO Abbreviation: Eur J Orthod Publication Date: 2005 Oct |
Date Detail:
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Created Date: 2005-10-05 Completed Date: 2005-11-14 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7909010 Medline TA: Eur J Orthod Country: England |
Other Details:
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Languages: eng Pagination: 512-7 Citation Subset: D; IM |
Affiliation:
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Department of Orthodontics, University of Ankara, Turkey. iseri@dentistry.ankara.edu.tr |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Cephalometry Chin / surgery* Equipment Design Humans Malocclusion / surgery* Mandible / surgery* Micrognathism / surgery Oral Surgical Procedures* / instrumentation Osteogenesis, Distraction / instrumentation* Prospective Studies Prostheses and Implants Recurrence Treatment Outcome |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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