Effects of facial tooth movement on the periodontium in rats : a comparison between conventional and low force

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Effects of facial tooth movement on the periodontium in rats : a comparison between conventional and low force

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Publication Article, peer reviewed scientific
Title Effects of facial tooth movement on the periodontium in rats : a comparison between conventional and low force
Author Danz, Jan C. ; Bibby, Bo M ; Katsaros, Christos ; Stavropoulos, Andreas
Date 2016
English abstract
Background: Bone dehiscences and gingival recession have been associated with orthodontic arch expansion. The aim of this study was to assess and compare periodontal modelling during application of two force levels. Methods: The second and third upper molars were orthodontically moved buccally with conventional or low forces for 60 or 90 days in 32 rats. Ten non-treatedanimals were used as controls. The influence of force level and time on dental, skeletal and periodontal parameters (i.e. height and thickness of gingiva and bone) was assessed on histomicrographs using a mixed linear model Results: Facial tooth position (725m, CI 379-1072m, distal root of the third molar) and maxillary skeletal width (295m, CI 168-421m) differed significantly between force groups. Despite bone apposition at the facial aspects of the moved roots, bone dehiscences were developing and bone thickness was decreasing during facial tooth movement. Development of gingival recession was scarce and in cases with extreme facial tooth movement. No remarkable differences between force levels were found for any of the periodontal parameters Conclusions: Facial tooth movement with conventional or low forces resulted in similar modelling of facial alveolar bone and gingiva
DOI https://doi.org/10.1111/jcpe.12505 (link to publisher's fulltext.)
Publisher Wiley
Host/Issue Journal of Clinical Periodontology;3
Volume 43
ISSN 0303-6979
Pages 229-237
Language eng (iso)
Subject animal
bone dehiscence
force level
gingival recession
orthodontics;
tooth movement
Medicine
Research Subject Categories::ODONTOLOGY
Handle http://hdl.handle.net/2043/23053 Permalink to this page
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