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Clarification of pathogenic mechanism of PCR and development of the prevention method -a study with rat mandibular distraction model-

Research Project

Project/Area Number 22592208
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Surgical dentistry
Research InstitutionNiigata University

Principal Investigator

KOBAYASHI Tadaharu  新潟大学, 医歯学総合病院, 講師 (80195792)

Co-Investigator(Kenkyū-buntansha) IZUMI Naoya  新潟大学, 医歯学総合病院, 助教 (10361908)
KOJIMA Taku  新潟大学, 医歯学系, 助教 (90515777)
Co-Investigator(Renkei-kenkyūsha) INOUE Kayoko (NOZAWA Kayoko)  新潟大学, 医歯学系, 特任准教授 (90303130)
Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
KeywordsPCR / 発症メカニズム / 下顎骨延長 / ラット実験モデル / マイクロ CT / PCR / マイクロCT
Research Abstract

This study was undertaken to examine the effects of mechanical loadings on the morphology of mandibular condyle following distraction in rat experimental model.10-week-old male Wistar rats received 3.5 mm unilateral mandibular distraction over 10 days after5-day latency period, and the morphological changes of mandibular condyles were examined one day, one week and three weeks after distraction. As a result, the deformation of the condyle with a destruction of cartilage layer and a bone resorption was recognized. These findings indicate thatoverloading to the mandibular condyle is a key factor for PCR.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (18 results)

All 2013 2012 2011 2010

All Journal Article (6 results) (of which Peer Reviewed: 4 results) Presentation (12 results)

  • [Journal Article] Effects of surgical orthodontic treatment for dentofacial deformities on signs and symptoms of temporomandibular joint.2013

    • Author(s)
      Masaki Togashi, Tadaharu Kobayashi, Daichi Hasebe, Akinori Funayama, Toshihiko Mikami, Isao Saito, Takafumi Hayashi, Chikara Saito
    • Journal Title

      Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology

      Volume: 25(1) Pages: 18-23

    • URL

      http://dx.doi.org/10.1016/j.ajoms.2012.05.014.

    • Related Report
      2012 Final Research Report
  • [Journal Article] Effects of surgical orthodontic treatment for dentofacial deformities on signs and symptoms of temporomandibular joint2013

    • Author(s)
      Togashi M, Kobayashi T, Hasebe D, Funayama A, Mikami T, Saito I, Hayashi T, Saito C
    • Journal Title

      Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology

      Volume: 25 Issue: 1 Pages: 18-23

    • DOI

      10.1016/j.ajoms.2012.05.014

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of intermittent parathyroid hormone treatment on new bone formation during distraction osteogenesis in the rat mandible2012

    • Author(s)
      Nowazesh Ali M, Tadaharu Kobayashi, Mikako Tanaka Hayato Ohshima, Sadakazu Ejiri, Chikara Saito
    • Journal Title

      Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology

      Volume: 114(1)

    • URL

      http://dx.doi.org/10.1016/j.oooo.2011.08.009

    • Related Report
      2012 Final Research Report
  • [Journal Article] Progressive condylar resorption after mandibular advancement2012

    • Author(s)
      Tadaharu Kobayashi, Naoya Izumi, Taku Kojima, Naoko Sakagami, Isao Saito, Chikara Saito
    • Journal Title

      British Journal of Oral and Maxillofacial Surgery

      Volume: 50 Issue: 2 Pages: 176-180

    • DOI

      10.1016/j.bjoms.2011.02.006

    • Related Report
      2012 Final Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Eifects of intermittent parathyroid hormone treatment on new bone formation during distraction osteogenesis in the rat mandible2012

    • Author(s)
      Ali MN, Kobayashi T, Tanaka M, Ejiri S, Ohshima H, Saito C
    • Journal Title

      Oral Surg Oral Med Oral Pathol Oral Radiol

      Volume: (In Press)(available online 25 February 2012) Issue: 1 Pages: e36-e42

    • DOI

      10.1016/j.oooo.2011.08.009

    • Related Report
      2012 Annual Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Progressive condylar resorption after mandibular advancement2011

    • Author(s)
      Tadaharu Kobayashi, Naoya Izumi, Taku Kojima, Naoko Sakagami, IsaoSaito, Chikara Saito
    • Journal Title

      British Journal of Oral and Maxillofacial Surgery

      Volume: In Press(published online)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] 下顎骨前方移動術後のProgressive Condylar Resorption発症リスクの検討2012

    • Author(s)
      小林正治、長谷部大地、船山昭典、三上俊彦、芳澤享子、齊藤力
    • Organizer
      第25回日本顎関節学会学術集会
    • Place of Presentation
      札幌
    • Year and Date
      2012-07-14
    • Related Report
      2012 Final Research Report
  • [Presentation] Stability after mandibular advancement: risk for progressive condylar resorption2012

    • Author(s)
      Tadaharu Kobayashi, Daichi Hasebe, Akinori Funayama, Toshihiko Mikami, Daisuke Saito, Michiko Yoshizawa, Chikara Saito
    • Organizer
      10th Asian Congress on Oral and Maxillofacial Surgery
    • Place of Presentation
      Bali, Indonesia
    • Related Report
      2012 Final Research Report
  • [Presentation] 下顎骨骨延長が顎関節に及ぼす影響-ラット下顎骨骨延長モデルを用いた検討-2012

    • Author(s)
      坂上直子、小林正治、野澤-井上佳世子、小島拓、織田公光、齊藤力、前田健康
    • Organizer
      第22回日本歯科医学会総会
    • Place of Presentation
      大阪
    • Related Report
      2012 Final Research Report
  • [Presentation] ラット下顎骨延長モデルにおける顎関節の形態学的・組織学的検討-力学的負荷が顎関節に及ぼす影響-2012

    • Author(s)
      坂上直子、小林正治、野澤-井上佳世子、小島拓、織田公光、齊藤力、前田健康
    • Organizer
      第22回特定非営利活動法人日本顎変形症学会総会
    • Place of Presentation
      福岡
    • Related Report
      2012 Final Research Report
  • [Presentation] 下顎後退症患者に対する下顎骨前方移動術後の顎骨安定性について2012

    • Author(s)
      小林正治、長谷部大地、上杉崇史、三上俊彦、船山昭典、齊藤力
    • Organizer
      第66回日本口腔科学会学術集会
    • Place of Presentation
      広島
    • Related Report
      2012 Final Research Report
  • [Presentation] Stability after mandibular advancement: risk for progressive condylar resorption2012

    • Author(s)
      Kobayashi T, Hasebe D, Funayama A, Mikami T, Saito D Yoshizawa M, Saito C
    • Organizer
      10th Asian Congress on Oral and Maxillofacial Surgery, Bali, Indonesia
    • Place of Presentation
      Discovery Kartika Plaza Hotel (Bali Indonesia)
    • Related Report
      2012 Annual Research Report
  • [Presentation] ラット下顎骨延長モデルにおける顎関節の形態学的・組織学的検討-力学的負荷が顎関節に及ぼす影響-2012

    • Author(s)
      坂上直子、小林正治、野澤-井上佳世子、小島拓、織田公光、齊藤力、前田健康
    • Organizer
      第22回特定非営利活動法人日本顎変形症学会総会
    • Place of Presentation
      福岡国際会議場(福岡)
    • Related Report
      2012 Annual Research Report
  • [Presentation] 下顎骨前方移動術後のProgressive Condylar Resorption発症リスクの検討2012

    • Author(s)
      小林正治、長谷部大地、船山昭典、三上俊彦、芳澤享子、齊藤 力
    • Organizer
      第25回日本顎関節学会学術集会
    • Place of Presentation
      シャトレーゼ ガトーキングダム サッポロ(札幌)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Stability after orthognathic surgery in the patients with jaw deformities2011

    • Author(s)
      T.KOBAYASHI
    • Organizer
      50th Congress of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons
    • Place of Presentation
      Gyeonggi Small and Medium Business Center(韓国,水原)(招待講演)
    • Year and Date
      2011-11-18
    • Related Report
      2011 Annual Research Report
  • [Presentation] Effect of mechanical loading on the condyle in a rat mandibular distruction model2011

    • Author(s)
      Naoko Sakagami, Tadaharu Kobayashi, Kayoko Nozawa-Inoue, Taku Kojima, Kimimitsu Oda, Chikara Saito, Takeyasu Maeda
    • Organizer
      International symposium on oral health education and research
    • Place of Presentation
      Balikpapan, Indonesia
    • Related Report
      2012 Final Research Report
  • [Presentation] Effects of mechanical loading on the condyle in rat mandibular distraction model2011

    • Author(s)
      N.SAKAGAMI, T.KOBAYASHI, K.INOUE, T.KOJIMA, M.YOSHIZAWA, C.SAITO, T.MAEDA
    • Organizer
      4^<th> Hiroshima Conference on Education and Science in Dentistry
    • Place of Presentation
      広島大学
    • Related Report
      2011 Annual Research Report
  • [Presentation] 顎変形症に対する顎矯正手術が顎関節症状に及ぼす影響2010

    • Author(s)
      富樫正樹、小林正治、長谷部大地、高田力
    • Organizer
      第23回日本顎関節学会総会・学術大会
    • Place of Presentation
      東京
    • Related Report
      2012 Final Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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