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Mandibular Lengthening by Backward Distraction Osteogenesis for an Angle Class II Case with Retrognathia
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- ISHII MAKI
- Center for Orthodontics & Maxillofacial Orthopedics, Itoh Dental Hospital Inc
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- OKI ERI
- Center for Orthodontics & Maxillofacial Orthopedics, Itoh Dental Hospital Inc
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- ICHIKAWA KAZUHIRO
- Center for Orthodontics & Maxillofacial Orthopedics, Itoh Dental Hospital Inc
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- ITOH TAKAMI
- Center for Orthodontics & Maxillofacial Orthopedics, Itoh Dental Hospital Inc
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- KISHIDA TSUYOSHI
- Itoh Dental Hospital
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- ITOH TAKATOSHI
- Itoh Dental Hospital
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- KONDOH TOSHIROU
- Nihon University, School of Dentistry at Matsudo
Bibliographic Information
- Other Title
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- Angle II級症例に対しBackward Distraction Osteogenesisを行った1症例
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Description
A 16-year-old female patient underwent mandibular lengthening by Backward Distraction Osteogenesis (BDO) for Angle Class II case with retrognathia. We experimented with facial and skeletal changes using cephalometry, and also analyzed the patient for possible changes of oral functions before and after treatment.<BR>The results were as follows:<BR>1) The mandibular lengthening showed effective results within five days, and the patient's profile and jaw relationship both improved after the treatment.<BR>2) Relapse was not seen and the posttreatment conditions were stable after removing the lengthening device.<BR>3) As for oral functions, maximum vertical opening increased and lateral movement resulted in a symme-try after BDO in the path of mandibular border movement. At the maximum velocity of opening and closing phases, a click point that had appeared clearly during the closing phase before the treatment, had disappeared after the treatment.<BR>4) As for MRI findings, both discs were displaced anteriorly without reduction before the treatment, but the anterior displacement with reduction was observed after the treatment during the opening phase.<BR>From these results, it was suggested that the BDO which was combined with SSRO and mandibular lengthening seemed to be a favorable technique to advance the mandible of an Angle Class II case with retrognathia.
Journal
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- The Japanese Journal of Jaw Deformities
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The Japanese Journal of Jaw Deformities 14 (1), 49-57, 2004
THE JAPANESE SOCIETY FOR JAW DEFORMITIES
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Details 詳細情報について
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- CRID
- 1390282679427500160
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- NII Article ID
- 10020407563
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- NII Book ID
- AN10366185
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- ISSN
- 18845045
- 09167048
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed