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Evaluation of occlusal contact in CAD / CAM crown using mandibular movement data

Research Project

Project/Area Number 18K09666
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 57050:Prosthodontics-related
Research InstitutionIwate Medical University

Principal Investigator

Tanabe Norimasa  岩手医科大学, 歯学部, 准教授 (60433497)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords下顎運動 / CAD/CAM / 咀嚼運動 / 下顎限界運動 / 歯冠補綴 / クラウン / 咬合器 / CAD/CAM冠 / バーチャル咬合器 / 咀嚼 / 咬合
Outline of Final Research Achievements

We have successfully fabricated ceramic crowns at which the locus of mandibular movement was reflected by the incorporation of a six-degree-of-freedom jaw-tracking device into CAD/CAM restoration system.Mandibular movement was analyzed and saved as the digital data with six-degree-of-freedom jaw-tracking device at the beginning of sequential treatment. Data of locus of mandibular movement was transferred to CAD software, the locus was reproduced on the occlusal surface of virtual wax up on CAD software, and then ceramic crown was milled. Little of adjustment was performed at intercuspal position but no adjustment performed at mandibular lateral movement.
Compared to the conventional system using a mean value articulator, adjustment amount of occlusal surface which had been fabricated by the incorporation of the six-degree-of-freedom jaw-tracking device into the CAD/CAM systems, was significantly small. Moreover, adjustment was not performed for lateral joe movement at all.

Academic Significance and Societal Importance of the Research Achievements

クラウン(かぶせもの)の咬合面形態を今回のように下顎運動を反映するような新しい技術を使用して製作することで,来院した時の治療時間の短縮やより機能性の高い,食事のしやすいクラウンを製作することができることが明らかとなった.これは,1本の歯の治療のみならず,多数の歯の治療を同時に行う治療においてより高い効果を発揮することが期待されることから,今後,歯科の臨床において普及していくことが期待される.

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (13 results)

All 2020 2019 2018

All Journal Article (4 results) (of which Peer Reviewed: 3 results) Presentation (8 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results) Book (1 results)

  • [Journal Article] 複数歯欠損における口腔内スキャナーの再現精度2020

    • Author(s)
      深澤 翔太, 田邉 憲昌, 高藤 恭子, 米澤 悠, 原 総一朗, 夏堀 礼二, 千葉 豊和, 近藤 尚知
    • Journal Title

      日本口腔インプラント学会誌

      Volume: 33 Pages: 176-183

    • NAID

      130007887837

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Oral mucosa pressure caused by mandibular implant overdenture with different types of attachments2020

    • Author(s)
      Hiroaki Sato, Takuya Kobayashi, Taro Nomura, Norimasa Tanabe, Kyoko Takafuji, Hidemichi Kihara, Hisatomo Kondo
    • Journal Title

      JOURNAL OF PROSTHODONTIC RESEARCH

      Volume: 64 Pages: 145-151

    • NAID

      130007871353

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Oral mucosa pressure caused by mandibular implant overdenture with different types of attachments2020

    • Author(s)
      H Sato , T Kobayashi , T Nomura, N Tanabe , K Takafuji, H Kihara, , H Kondo
    • Journal Title

      Journal of Prosthodontic Research

      Volume: 64 Issue: 2 Pages: 145-151

    • DOI

      10.1016/j.jpor.2019.06.003

    • NAID

      130007871353

    • ISSN
      1883-1958, 1883-9207
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] 歯冠補綴のデジタルワークフローにおける歯科医師と歯科技工士との連携を考える2019

    • Author(s)
      田邉憲昌
    • Journal Title

      日本補綴歯科学会誌

      Volume: 11 Pages: 227-232

    • NAID

      130007684721

    • Related Report
      2019 Research-status Report
  • [Presentation] Augmented Realityを応用したインプラント埋入モデル作成の試み2020

    • Author(s)
      小山田 勇太郎, 小林 琢也, 高橋 敏幸, 田邉 憲昌, 米澤 悠, 佐藤 宏明, 藤野 修, 近藤 尚知
    • Organizer
      日本口腔インプラント学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] インプラント体間距離における口腔内スキャナーの誤差の変化量の検討2020

    • Author(s)
      深澤 翔太,夏堀 礼二,田邉 憲昌,千葉 豊和,近藤 尚知
    • Organizer
      日本口腔インプラント学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 審美領域に口腔内スキャナーを用いてインプラント治療を行った1症例2020

    • Author(s)
      折祖研太、横田潤、田邊憲昌、塚谷顕介、斎藤裕美子、近藤尚知
    • Organizer
      日本補綴歯科学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 口腔内スキャナーの複数歯における位置再現精度に関する研究2019

    • Author(s)
      深澤翔太、田邉憲昌
    • Organizer
      日本航空インプラント学会
    • Related Report
      2019 Research-status Report
  • [Presentation] 患者固有の下顎運動軌跡を反映したCAD/CAMクラウンを装着した1症例2018

    • Author(s)
      塚谷 顕介, 田邉 憲昌, 浅野 明子, 近藤 尚知
    • Organizer
      日本顎関節学会
    • Related Report
      2018 Research-status Report
  • [Presentation] CAD / CAM restoration reflecting the locus of patient's chewing movement: a clinical report2018

    • Author(s)
      K Tsukatani, N Tanabe, A Fukutoku, Hi Kondo
    • Organizer
      米国審美歯科学会(AAED)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] ≪シンポジウム≫歯冠補綴のデジタルワークフローにおける歯科技工士との連携2018

    • Author(s)
      田邉憲昌
    • Organizer
      日本補綴歯科学会 東北・北海道支部 総会・学術大会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Occlusal contact of CAD / CAM crown reflecting the locus of chewing movement: a clinical report2018

    • Author(s)
      Norimasa Tanabe, Takuya Kobayashi, Jun Yokota, Hisatomo Kondo
    • Organizer
      第5回IADDM
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Book] Digital Dentistry YEARBOOK 20182018

    • Author(s)
      日本デジタル歯科学会
    • Total Pages
      362
    • Publisher
      クインテッセンス出版
    • ISBN
      9784781206196
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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