Anchorage capacity of osseointegrated and conventional anchorage systems: a randomized controlled trial

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Anchorage capacity of osseointegrated and conventional anchorage systems: a randomized controlled trial

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Publication Article, peer reviewed scientific
Title Anchorage capacity of osseointegrated and conventional anchorage systems: a randomized controlled trial
Author(s) Feldmann, Ingalill ; Bondemark, Lars
Date 2008
English abstract
INTRODUCTION: Our aim in this investigation was to evaluate and compare orthodontic anchorage capacity of 4 anchorage systems during leveling/aligning and space closure after maxillary premolar extractions. METHODS: One hundred twenty patients (60 girls, 60 boys; mean age, 14.3 years; SD 1.73) were recruited and randomized into 4 anchorage systems: Onplant (Nobel Biocare, Gothenburg, Sweden), Orthosystem implant (Institut Straumann AG, Basel, Switzerland), headgear, and transpalatal bar. The main outcome measures were cephalometric analysis of maxillary first molar and incisor movement, sagittal growth changes of the maxilla, and treatment time. The results were also analyzed on an intention-to-treat basis. RESULTS: The maxillary molars were stable during the leveling/aligning in the Onplant, Orthosystem implant, and headgear groups, but the transpalatal bar group had anchorage loss (mean, 1.0 mm; P <.001). During the space-closure phase, the molars were still stable in the Onplant and Orthosystem groups, whereas the headgear and transpalatal bar groups had anchorage loss (means, 1.6 and 1.0 mm, respectively; P <.001). Thus, the Onplant and the Orthosystem implant groups had significantly higher success rates for anchorage than did the headgear and transpalatal bar groups. Compared with the Orthosystem implant, there were more technical problems with the Onplant. CONCLUSIONS: If maximum anchorage is required, the Orthosystem implant is the system of choice.
DOI http://dx.doi.org/10.1016/j.ajodo.2007.08.014 (link to publisher's fulltext)
Host/Issue American journal of orthodontics and dentofacial orthopedics;3
Volume 133
ISSN 0889-5406
Pages 19-28
Language eng (iso)
Subject(s) Medicine
Research Subject Categories::ODONTOLOGY
Handle http://hdl.handle.net/2043/6779 (link to this page)

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