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1998 Fiscal Year Final Research Report Summary

Development of the Overall Diagnosis System in Stomatognathic System as the objective determination

Research Project

Project/Area Number 08457525
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field 補綴理工系歯学
Research InstitutionOsaka University

Principal Investigator

NOKUBI Takashi  Osaka University・Faculty of Dentistry・Professor, 歯学部, 教授 (80028753)

Co-Investigator(Kenkyū-buntansha) YASUI Sakae  Osaka University・Faculty of Dentistry・Research Associate, 歯学部, 助手 (40294110)
YAMAMOTO Makoto  Osaka University・Faculty of Dentistry・Research Associate, 歯学部, 助手 (60283793)
NAGASHIMA Tadashi  Osaka University・Dental Hospital・Assistant Professor, 歯学部・附属病院, 講師 (40237516)
Project Period (FY) 1996 – 1998
KeywordsStomatognathic Function / EMG / Jaw Movement / Masticatory Efficiency / Reinforcement of Dentuer Base / Movement of Denture
Research Abstract

In order to establish the objective determination in stomatognathic system, we gave the searching for the effective parameter for the diagnosis of the jaw function and for the design standard of denture that would be work stably for a long time. The main results were as follows :
1. Wearing the denture, the improvement of the masticatory efficiency was admitted in all patients. And more, the significant correlation was found between the maximum bite force and the masticatory efficiency. So, it was suggested that examining the bite force or the masticatory efficiency was useful to check the jaw function.
2. It was shown that the right and left asymmetry in masticatory muscle activity and the stability in the locus of condylar movements are effective for detailed inspection on stomatognathic function.
3. Examining the effective reinforcement structure to raise the stiffness of lower complete denture, it was suggested that applying the casts structure with T style section was most effective for that.
4. The movement of denture during chewing was influenced by the forms of residual ridge and the position of biting force effected on the denture, and it could be controlled by changing the planting position of the artificial teeth.
5. In over denture wearers, the horizontal pressures on the abutment tooth was influenced by changing the shape or the number of root cap.

  • Research Products

    (12 results)

All Other

All Publications (12 results)

  • [Publications] "試験用グミゼリーの物性と咬合接触状態が咀嚼能率に及ぼす影響" 日本補綴歯科学会雑誌. 40・4. 710-717 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 梅原亜紀: "全部床義歯装着者において試験用グミゼリーを用いる咀嚼能率診査法の改良" 日本補綴歯科学会雑誌. 41・5. 850-855 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nagashima, T: "Impact velocities of the teeth after sudden unloading at various initial bite forces, degrees of mouth opening and distances of travel" J.Dental Research. 76・11. 1751-1759 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 山賀 保: "オーバーデンチャーのノンコーピング法支台歯の観察" 老年歯科医学. 12・1. 11-16 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 黄 恵蘭: "機能時における下顎全部床義歯の変形挙動と補強構造との関係-三次元有限要素法による検討-" 日本補綴歯科学会雑誌. 41・97回 特別号. 109 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Nokubi, T.: "Objective evaluation and constituing database of masticatory function." Dentistry in Japan. 35. 159 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Okiyama, S., Yoshida, M., Yamamoto, M., Morii, M., Nokubi, T.: "Influence of physical properties of testing food and pcclusal contact on masticatory efficiency." J Jpn Prosthodont Soc. 40. 710-717 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Umehara, A., Nokubi, T., Yasui, S., Nakamura, K., Okiyama, S., Ymamoto, M.: "A method of improving the evaluation of masticatory efficiency in complete denture wearers by using the testing gumi-jelly." J Jpn Prosthodont Soc. 41. 850-855 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nagashima, T., Slager, G.E.C., Otten, E., Broekhuijsen, M.L., Van Willigen, J.D.: "Impact velocities of the teeth after sudden unloading at various initial bite forces, degrees of mooth opening and distances of travel." J Dental Research. 76. 1751-1769 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Yamaga, T., Itosaka, N., Yoshida, N., Nokubi, T.: "Observation of non-coping abutments for overdentures." J Jpn Gerodont. 12. 11-16 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Huang, H., Mitta, K., Maeda, Y., Sogo, M., Nokubi, T.: "Relation between the reinforcement and the deformation of mandibular complete denture-study on the three dimensional finite analysis-." J Jpn Prosthodont Soc. 41・97th special issue. 109 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Nokubi, T., Igarashi, Y., Enomoto, S., Kimura, Y., Kohno, S., Kobayashi, Y., Hirai, T., Ymaguchi, T., Watanabe, M., Harada, K., Yamamoto, M.: "Objective evaluation and constituing database of masticatory function." Dentistry in Japan. 35. 159 (1999)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-12-08  

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