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Orthodontic Simulator for Three Dimensional Orthodontic Force Measurement

Research Project

Project/Area Number 07457505
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 矯正・小児・社会系歯学
Research InstitutionTokyo Medical and Dental University

Principal Investigator

MIYAIRI Hiroo  The Medical and Dental University, Inst Med Dent Engng, Professor, 医用器材研究所, 教授 (50013892)

Co-Investigator(Kenkyū-buntansha) FUKUDA Hideaki  The Medical and Dental University, Inst Med Dent Engng, Assistant, 医用器材研究所, 助手 (50014163)
NAGAI Masahiro  The Medical and Dental University, Inst Med Dent Engng, Assistant, 医用器材研究所, 助手 (10013971)
TAKAKUDA Kazuo  The Medical and Dental University, Inst Med Dent Engng, Associate Professor, 医用器材研究所, 助教授 (70108223)
Project Period (FY) 1995 – 1997
Project Status Completed (Fiscal Year 1997)
Budget Amount *help
¥5,900,000 (Direct Cost: ¥5,900,000)
Fiscal Year 1997: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1996: ¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1995: ¥2,400,000 (Direct Cost: ¥2,400,000)
KeywordsOrthodontics / Orthodontic Force / Tooth Movement / Experimental Model / Simulator
Research Abstract

To realize the orthodontic simulators, we built a instrumented tooth model. This model is for anterior teeth, constructed on a combined gonio and x stages. The rotational center of the gonio stage is adjust to the center of resistance of the teeth, and the translation direction of the x stage is adjusted as the anteroposterior direction. Thus the model can simulate the movement of the teeth under orthodontical treatment. The three dimensional force was measured by the load cell made by the brass cylinder with four strain gages. It can measure the anteroposterior force and saggital moment. Although the strain magnitude was not so large, the output linearity was excellent and the calibration testing guarantee the accuracy of the measuring system. Above these components, there settled the artificial resin teeth which enable us to make the realistic form to the simulator. The tooth arch was constructed using the four instrumented anterior teeth models and two other posterior tooth model. Then the orthodontic apparatus was settled on the simulator and the orthodontic force was measured. The apparatus were stainless steel wires of .018" or .016" square cross section. The wire were tied with ligature wire to the blankets adhered to the resin tooth. The retraction force was simulated by the weight loaded to the wires. The measured results were satisfactory and it was proved that the simulator constructed is useful to analyze the orthodontic force generated by the orthodontic apparatus.

Report

(4 results)
  • 1997 Annual Research Report   Final Research Report Summary
  • 1996 Annual Research Report
  • 1995 Annual Research Report
  • Research Products

    (3 results)

All Other

All Publications (3 results)

  • [Publications] 陳 僑強, 高久田 和夫, 宮入 裕夫: "矯正シミュレータの開発" 歯科材料器械. 29. 165-165 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] Scot Chen, Kazuo Takakuda, Hiroo Miyairi: Shika Zairyo Kikai. 29. 165 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1997 Final Research Report Summary
  • [Publications] 陳仔強, 高久田和夫, 宮入裕夫: "矯正シミュレータの開発" 歯科材料器械. 29. 165-165 (1997)

    • Related Report
      1997 Annual Research Report

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Published: 1995-04-01   Modified: 2016-04-21  

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