習慣性咀嚼側咀嚼時と非習慣性咀嚼側咀嚼時の舌運動と下顎運動動態の差異  [in Japanese] Tongue Motor Behavior and Mandibular Movementin Habitual Chewing Side and Non-habitual Chewing Side  [in Japanese]

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Author(s)

    • 服部 真幸 HATTORI Masayuki
    • 北海道医療大学歯学部歯科補綴学第1講座 Department of Removable Prosthodontics, School of Dentistry, Health Sciences University of Hokkaido
    • 越野 寿 KOSHINO Hisashi
    • 北海道医療大学歯学部歯科補綴学第1講座 Department of Removable Prosthodontics, School of Dentistry, Health Sciences University of Hokkaido
    • 平井 敏博 HIRAI Toshihiro
    • 北海道医療大学歯学部歯科補綴学第1講座 Department of Removable Prosthodontics, School of Dentistry, Health Sciences University of Hokkaido
    • 石島 勉 ISHIJIMA Tsutomu
    • 北海道医療大学歯学部歯科補綴学第1講座 Department of Removable Prosthodontics, School of Dentistry, Health Sciences University of Hokkaido

Abstract

To elucidate the tongue movement in chewing with habitual chewing side chewing (HC) and non-habitual chewing side chewing (NHC), the chewing test was performed using eight healthy, fully dentate males. Tongue and mandibular movements with and without an experimental lingual plate (ELP) in chewing 3 grams of peanuts with HC and NHC were recorded and analyzed. Tongue movement of the ipsilateral and contralateral measuring points were recorded by ultrasound diagnostic equipment with 5 MHz electron convex section scanning probe, and mandibular movements of the incisal point were recorded by MKG. The masticatory efficiency was evaluated by the sieving method at that time.<BR>The results were as follows:<BR>1. The masticatory efficiency in NHC was lower than that of HC (p<0.01).<BR>2. The cycle time of tongue movement in NHC was longer than that of HC (p<0.01).<BR>3. The cycle time of mandibular movement in NHC was longer than that of HC (p<0.01).<BR>4. In HC and NHC, there was statistical correlation coefficient among masticatory efficiency, cycle time of tongue movement and cycle time of mandibular movement (p<0.01).<BR>From the result, it was suggested that analyzing tongue movement and mandibular movement is effective to determine the habitual chewing side in a patient. It was also suggested that the tongue acted harmoniously with the mandible in HC side chewing, but such cooperation was lacking in NHC.

Journal

  • Nihon Hotetsu Shika Gakkai Zasshi

    Nihon Hotetsu Shika Gakkai Zasshi 44(3), 386-393, 2000-06-10

    Japan Prosthodontic Society

References:  21

Cited by:  1

Codes

  • NII Article ID (NAID)
    10008155739
  • NII NACSIS-CAT ID (NCID)
    AN00197911
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    03895386
  • Data Source
    CJP  CJPref  J-STAGE 
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