| Evaluation of rotational control and forces generated during first-order archwire deflections: a comparison of self-ligating and conventional brackets. | |
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MedLine Citation:
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PMID: 22045693 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The purpose of this study was to compare the activation and deactivation forces generated during first-order archwire deflections when different sizes and types of NiTi wires are paired with conventional and self-ligating brackets (SLBs) and to evaluate the rotational control between these same archwire and bracket combinations. Four maxillary premolar SLBs (Damon 3MX, SmartClip, Carriere, and In-Ovation R) and one conventional twin bracket (Victory) were paired with seven archwires [0.014, 0.016, 0.018, 0.016 × 0.022 Ultra Therm (thermal A(f)80-90°F), 0.016, 0.018 SPEED Supercable, and 0.017 × 0.025 Turbo]. A cantilever test design was used and 10 trials per bracket/archwire combination were performed. Load/deflection data were captured over 4 mm first-order archwire deflections. Forces generated were compared across all bracket/archwire combinations. Among thermal archwires, for a given deflection, forces increased with increasing archwire size. Supercable archwires displayed less force than their same size thermal counterparts. The Turbo archwire generated force values in between those of 0.016 and 0.018 thermal archwires. Rotational control improved with increasing wire dimensions and for a given archwire size. Rotational control among brackets generally ranked as follows: In-Ovation R > SmartClip > Carriere and Damon 3MX. |
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Authors:
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Robert E Pesce; Flavio Uribe; Nandakumar Janakiraman; William P Neace; Donald R Peterson; Ravindra Nanda |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-10-31 |
Journal Detail:
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Title: European journal of orthodontics Volume: - ISSN: 1460-2210 ISO Abbreviation: - Publication Date: 2011 Oct |
Date Detail:
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Created Date: 2011-11-2 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7909010 Medline TA: Eur J Orthod Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Division of Orthodontics, Department of Craniofacial Sciences, University of Connecticut School of Dental Medicine, Farmington, CT. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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