The korean journal of orthodontics (대한치과교정학회지)

The Korean Association Of Orthodontists (대한치과교정학회)
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Protraction of mandibular molars through a severely atrophic edentulous space in a case of juvenile periodontitis

  • Wu, Jian-chao (Department of Stomatology, The Second Affiliated Hospital, School of Medicine, Zhejiang University) ;
  • Zheng, Yu-ting (Department of Stomatology, The Second Affiliated Hospital, School of Medicine, Zhejiang University) ;
  • Dai, Yi-jun (Department of Orthodontics, Affiliated Hospital of Stomatology, School of Medicine, Zhejiang University)
  • Received : 2018.12.20
  • Accepted : 2019.04.08
  • Published : 2020.03.25
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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.

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References

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