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Bone response to different strength orthodontic forces in animals with periodontitis
Author(s) -
Garat J. A.,
Gordillo M. E.,
Ubios A. M.
Publication year - 2005
Publication title -
journal of periodontal research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.31
H-Index - 83
eISSN - 1600-0765
pISSN - 0022-3484
DOI - 10.1111/j.1600-0765.2005.00809.x
Subject(s) - dental alveolus , ligature , dentistry , periodontitis , molar , medicine , orthodontics , alveolar process , surgery
Background: Occlusal alterations resulting from tooth movements caused by periodontitis‐related bone loss are often corrected with orthodontic treatments. Although the outcome is usually satisfactory, a quantitative histomorphometric study of bone response would contribute to improving treatment planning and optimizing results. Methods and Results: This study is a histomorphometric analysis of alveolar bone response to 51 and 75‐g orthodontic forces applied to rat molars subjected to experimental periodontitis by placing a ligature around the neck of the molar during 48 h. The orthodontic device consisted of two bands with a tube welded to their palatine aspect, through which the arms of a helicoidal spring were threaded so as to exert force toward palatine. The device was placed immediately and 48 h after removing the ligatures. When applied 48 h post‐removal of the ligature, both orthodontic forces caused an increase in bone volume in the periodontitis group. Conclusions: Our study shows that application of orthodontic forces once periodontal infection has been controlled contributes to increasing alveolar bone volume, consequently improving bone quality.