Fixed versus removable orthodontic appliances to correct anterior crossbite in the mixed dentition : a randomized controlled trial

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Fixed versus removable orthodontic appliances to correct anterior crossbite in the mixed dentition : a randomized controlled trial

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Publication Article, peer reviewed scientific
Title Fixed versus removable orthodontic appliances to correct anterior crossbite in the mixed dentition : a randomized controlled trial
Author(s) Wiedel, Anna-Paulina ; Bondemark, Lars
Date 2014
English abstract
Objective: To compare the effectiveness of fixed and removable orthodontic appliances in correcting anterior crossbite with functional shift in the mixed dentition. Subjects and methods: Consecutive recruitment of 64 patients who met the following inclusion criteria: early to late mixed dentition, anterior crossbite with functional shift, moderate space deficiency in the maxilla, i.e. up to 4mm, a non-extraction treatment plan, the ANB angle > 0 degree, and no previous orthodontic treatment. Sixty-two patients agreed to participate. The study was designed as a randomized controlled trial with two parallel arms. After written consent was obtained, the patients were randomized, in blocks of 10, for treatment either with a removable appliance with protruding springs or a fixed appliance with multi-brackets. The main outcome measures assessed were success rate, duration of treatment, and changes in overjet, overbite, and arch length. The results were also analysed on an intention-to-treat basis. Results: The crossbite was successfully corrected in all patients in the fixed appliance group and all except one in the removable appliance group. The average duration of treatment was significantly less, 1.4 months, for the fixed appliance group (P < 0.05). There were significant increases in arch length and overjet in both treatment groups, but significantly more in the fixed appliance group (P < 0.05 and P < 0.01).  Conclusion: Anterior crossbite with functional shift in the mixed dentition can be successfully corrected by either fixed or removable appliance therapy in a short-term perspective.
DOI http://dx.doi.org/10.1093/ejo/cju005 (link to publisher's fulltext)
Publisher Oxford University Press
Host/Issue European Journal of Orthodontics;
ISSN 1460-2210
Pages e-pub ahead of print
Language eng (iso)
Subject(s) Anterior crossbite
Fixed versus removable
removable orthodontic appliances
effectiveness
Medicine
Research Subject Categories::ODONTOLOGY
Handle http://hdl.handle.net/2043/18042 (link to this page)

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