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Protraction of mandibular molars through a severely atrophic edentulous space in a case of juvenile periodontitis

Korean Journal of Orthodontics 2020년 50권 2호 p.145 ~ 154
 ( Wu Jian-Chao ) - Zhejiang University School of Medicine Second Affiliated Hospital Department of Stomatology

 ( Zheng Yu-Ting ) - Zhejiang University School of Medicine Second Affiliated Hospital Department of Stomatology
 ( Dai Yi-Jun ) - Zhejiang University School of Medicine Affiliated Hospital of Stomatology Department of Orthodontics

Abstract


Moving the mandibular posterior teeth into a severely atrophic edentulous space is a challenge. A carefully designed force-and-moment system that results in bodily protraction of the posterior teeth with balanced bone resorption and apposition is needed in such cases. This report describes the treatment of a 19-year-old woman with missing mandibular first molars due to juvenile periodontitis. Miniscrews were used as absolute anchorage during protraction of the mandibular second and third molars. Bodily mesial movement of the mandibular second and third molars was achieved over a distance of 11 to 17 mm after 39 months of orthodontic treatment.

키워드

Miniscrew; Anchorage; Adult treatment; Bodily tooth movement
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SCI(E)
KCI
KoreaMed