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Research of the occlusal phase during the masticatory movement

Research Project

Project/Area Number 12672004
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 矯正・小児・社会系歯学
Research InstitutionKyushu University

Principal Investigator

HAYASAKI Haruaki  Faculty of Dental Science, Research Associate, 大学院・歯学研究院, 助手 (60238095)

Co-Investigator(Kenkyū-buntansha) OCHIAI Satoru  Dental Hospital, Research Associate, 歯学部附属病院, 助手 (20315097)
YAMASAKI Youichi  Dental Hospital, Assistant Professor, 歯学部附属病院, 講師 (30200645)
渡辺 里香  九州大学, 歯学部・附属病院, 医員
Project Period (FY) 2000 – 2002
Project Status Completed (Fiscal Year 2002)
Budget Amount *help
¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 2002: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2001: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2000: ¥1,600,000 (Direct Cost: ¥1,600,000)
Keywordsmastication / occlusal phase / cycle / pathway / children / primary dentition
Research Abstract

The purposes of this study were 1) to establish the system, which could observe the occlusal contacts and the length of the glide during functional masticatory movements, and 2) to investigate the characteristics of the occlusal phase during chewing movements. The system has been built and reported in 2000 (J Dent Res, 79: 1890-1895). Also several characteristics of chewing movements in children with primary dentition compare with adults with healthy permanent dentition has been reported in 2000, 2001 and 2002 by means of this system (J Jpn Soc Stomatognath Funct, 6: 153-161, 2000; Jpn J Ped Dent, 38, 1025-1033, 2000; J Oral Rehabil, 28, 328-334, 2001; J Oral Rehabil, 29, 64-71, 2002). To elucidate the characteristics of occlusal phase in children, 1) the length of occlusal glides, 2) the stability of this length, 3) the stability of the position of the minimum opening position, 4) the stability of the maximum intercuspal position, 5) the sagittal and frontal projected angles both on the closing and opening pathway of masticatory cycles, and 6) correlations between the opening and closing pathways were examined.
As results, 1) children with primary dentition had less variability on almost all variables, 2) chewing pattern was not the same between two groups, and 3) adults had relatively high correlations between the opening and closing pathway compared with children. These results might be caused by 1) relatively flat occlusal morphology including dentitions and TMJ, and 2) imprinted sucking behavior might exist even in children with primary dentition. Some finding suggested that these characteristics would be decreasing with their growth and development.
This study could provide good information for the characteristics of the occlusal phase in children with primary dentition. However, further investigation will be required to obtain the clues for the functional diagnosis of the mandible.

Report

(4 results)
  • 2002 Annual Research Report   Final Research Report Summary
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (30 results)

All Other

All Publications (30 results)

  • [Publications] Hayasaki H et al.: "Length of the occiusal glide at the lower incisal point during chewing"Journal of Oral Rehabilitation. 29. 1120-1125 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Saitoh I, Hayasaki H et al.: "Improvement in jaw motion following treatment of unilateral crossbite in a child with primary dentition : a case report"The Journal of Craniomandibular Practice. 20. 129-134 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] 齋藤一誠, 早崎治明 他: "乳歯列期小児における咬合相の運動経路"日本顎口腔機能学会雑誌. 9. 23-29 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Yamasaki Y, Hayasaki H et al.: "Condylar motion in children with primary dentition during lateral excursion"The Journal of Craniomandibular Practice. 20. 172-180 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hayasaki et al.: "Position and variability of minimum opening position during gum-chewing"Prosthodontic Research & Practice. 1. 66-73 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hayasaki H et al.: "Length of the glide during chewing in children with primary dentition"Journal of Oral Rehabilitation. (In pres).

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] H. Hayasaki et al.: "Length of the occlusal glide at the lower incisal point during chewing"Journal of Oral Rehabilitation. 29. 1120-1125 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] I. Saitoh, H. Hayasaki et al.: "Improvement in jaw motion following treatment of unilateral Crossbite in a child with primary dentition: a care report"The Journal of Craniomandibular Practice. 20. 129-134 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] I. Saitoh, H. Hayasaki et al.: "Masticatory movement during occlusal phase in children with primary dentition and women"J. Jpn. Soc. Stomatognath. Funct.. 9. 23-29 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Y. Yamasaki, H. Hayasaki et al.: "Condylar motion in children with primary dentition during lateral excursion"The Journal of Craniomandibular Practice. 20. 172-180 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] H. Hayasaki et al.: "Position and variability of minimum opening position during gum-chewing"Prosthodontic Research & Practice. 1. 66-73 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] H. Hayasaki et al.: "Length of the glide during chewing in children with primary dentition"Journal of Oral Rehabilitation. (In press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] S. Nakata, H. Hayasaki et al.: "Jaw motion during gum chewing in children with primary dentition"Journal of Oral Rehabilitation. (In press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] H. Hayasaki et al.: "Occlusal phase of gum-chewing strokes"Journal of Oral Rehabilitation. (In press).

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2002 Final Research Report Summary
  • [Publications] Hayasaki H et al.: "Length of the occlusal glide at the lower incisal point during chewing"Journal of Oral Rehabilitation. 29. 1120-1125 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Saitoh I, Hayasaki H et al.: "Improvement in jaw motion following treatment of unilateral crossbite in a child with primary dentition: a case report"The Journal of Craniomandibular Practice. 20. 129-134 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 齋藤一誠, 早崎治明 他: "乳歯列期小児における咬合相の運動経路"日本顎口腔機能学会雑誌. 9. 23-29 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Yamasaki Y, Hayasaki H et al.: "Condylar motion in children with primary dentition during lateral excursion"The Journal of Craniomandibular Practice. 20. 172-180 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Hayasaki et al.: "Position and variability of minimum opening position during gum-chewing"Prosthodontic Research & Practice. 1. 66-73 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Hayasaki H et al.: "Length of the glide during chewing in children with primary dentition"Journal of Oral Rehabilitation. (In press).

    • Related Report
      2002 Annual Research Report
  • [Publications] 早崎治明 他: "乳歯列期小児の咀嚼運動における終末位付近の動態"日本顎口腔機能学会. 6・1. 153-161 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] Hayasaki H et al.: "Length of the occlusal glide at the lower incisal point during chewing"Journal of Oral Rehabilitation. (In press).

    • Related Report
      2001 Annual Research Report
  • [Publications] Okamoto A, Hayasaki H, et al.: "Occlusal contacts during lateral excursions in children with primary dentition"Journal of Dental Research. 79・12. 1890-1895 (2000)

    • Related Report
      2001 Annual Research Report
  • [Publications] Throckmorton GS, Buschang PH, Hayasaki H et al.: "Changes in the masticatory cycle following treatment of posterior unilateral crossbite in children"Journal of Oral Rehabilitation. 28・4. 328-334 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Nagata M, Yamasaki Y, Hayasaki et al.: "Incisal and condylar paths during habitual mouth opening movement of children with anterior reverse bite in the primary dentition"Journal of Oral Rehabilitation. 29・1. 64-71 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Saitoh I, Hayasaki H et al.: "Improvement in jaw motion following treatment of unilateral crossbite in a child with primary dentition : a case report"The Journal of Craniomandibular Practice. (In Press).

    • Related Report
      2001 Annual Research Report
  • [Publications] 早崎治明 他: "乳歯列期小児の咀嚼運動における終末位付近の動態"日本顎口腔機能学会. 6・1. 153-161 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 岩瀬陽子,早崎治明 他: "小児におけるガム咀嚼運動のサイクル分割方法に関する研究"日本小児歯科学会雑誌. 38・3. 1025-1033 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Okamoto A,Hayasaki H, et al.: "Occlusal contacts during lateral excursions in children with primary dentition."Journal of Dental Research. 79・12. 1890-1895 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Hayasaki H et al,: "Length of the occlusal glide at the lower incisal point during chewing."Journal of Oral Rehabilitation. (In press).

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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