| The effectiveness and long-term stability of overbite correction with incisor intrusion mechanics. | |
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MedLine Citation:
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PMID: 15643414 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Correction of deep overbite with subsequent achievement of long-term stability is difficult. The purpose of this study was to investigate the effectiveness and long-term stability of overbite correction with incisor intrusion mechanics. METHODS: The treated group consisted of 25 subjects (13 female, 12 male) with deep overbite of at least 4 mm (mean overbite, 5.9 mm). The orthodontic treatment was initiated in the late mixed or early permanent dentition, and all patients were treated nonextraction. All patients had lateral cephalometric radiographs taken at pretreatment (T1), posttreatment (T2), and postretention (T3). The treatment included cervical headgear and lever arches to intrude mainly the maxillary incisors and occasionally the mandibular incisors. Premolars were not included in the fixed appliances during the treatment. The untreated group consisted of 25 age- and sex-matched subjects from the Bolton Growth Study. RESULTS: The mechanics used were effective in overbite correction. During the posttreatment period, overbite increased by 0.7 mm. CONCLUSIONS: Although this change was statistically significant, the amount was small and is considered clinically insignificant, given the severity of the overbite pretreatment. Furthermore, a net overbite correction (T3-T1) of 3.3 mm and postretention overbite on 2.6 mm is an excellent clinical outcome. |
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Authors:
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Huda Al-Buraiki; Cyril Sadowsky; Bernard Schneider |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics Volume: 127 ISSN: 0889-5406 ISO Abbreviation: Am J Orthod Dentofacial Orthop Publication Date: 2005 Jan |
Date Detail:
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Created Date: 2005-01-11 Completed Date: 2005-02-09 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 8610224 Medline TA: Am J Orthod Dentofacial Orthop Country: United States |
Other Details:
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Languages: eng Pagination: 47-55 Citation Subset: D; IM |
Affiliation:
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Department of Orthodontics, University of Illinois at Chicago, 60612, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Cephalometry Child Female Humans Incisor* Male Malocclusion / therapy* Maxilla Recurrence / prevention & control Retrospective Studies Tooth Movement* / instrumentation, methods Vertical Dimension |
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