Stability of anterior crossbite correction : a randomized controlled trial with a 2-year follow-up

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Stability of anterior crossbite correction : a randomized controlled trial with a 2-year follow-up

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Publication Article, peer reviewed scientific
Title Stability of anterior crossbite correction : a randomized controlled trial with a 2-year follow-up
Author(s) Wiedel, Anna-Paulina ; Bondemark, Lars
Date 2014
English abstract
Abstract Objective: To compare and evaluate the stability of correction of anterior crossbite in the mixed dentition by fixed or removable appliance therapy. Material and Methods: The subjects were 64 consecutive patients who met the following inclusion criteria: early to late mixed dentition, anterior crossbite affecting one or more incisors, no inherent skeletal Class III discrepancy, moderate space deficiency, a nonextraction treatment plan, and no previous orthodontic treatment. The study was designed as a randomized controlled trial with two parallel arms. The patients were randomized for treatment with a removable appliance with protruding springs or with a fixed appliance with multibrackets. The outcome measures were success rates for crossbite correction, overjet, overbite, and arch length. Measurements were made on study casts before treatment (T0), at the end of the retention period (T1), and 2 years after retention (T2). Results: At T1 the anterior crossbite had been corrected in all patients in the fixed appliance group and all except one in the removable appliance group. At T2, almost all treatment results remained stable and equal in both groups. From T0 to T1, minor differences were observed between the fixed and removable appliance groups with respect to changes in overjet, overbite, and arch length measurements. These changes had no clinical implications and remained unaltered at T2. Conclusions: In the mixed dentition, anterior crossbite affecting one or more incisors can be successfully corrected by either fixed or removable appliances with similar long-term stability; thus, either type of appliance can be recommended.
DOI http://dx.doi.org/10.2319/041114-266.1 (link to publisher's fulltext)
Publisher E.H Angle Education and Research Foundation
Host/Issue The Angle Orthodontist;
ISSN 0003-3219
Pages 7
Language eng (iso)
Subject(s) Anterior crossbite
Orthodontics
Randomized controlled trial
Stability
Medicine
Research Subject Categories::ODONTOLOGY
Handle http://hdl.handle.net/2043/18232 (link to this page)

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