形成過程からみたデンチャープラーク,義歯の歯石様沈着物とその除去法  [in Japanese] Formation Processes of Denture Plaque and Denture Calculus, and Method of the Elimination of Their Deposits  [in Japanese]

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Author(s)

    • 細井 紀雄 HOSOI Toshio
    • 鶴見大学歯学部歯科補綴学第一講座 Department of the First Prostheic Dentistry, Tsurumi University School of Dental Medicine
    • 石川 知恵子 ISHIKAWA Chieko
    • 鶴見大学歯学部歯科補綴学第一講座 Department of the First Prostheic Dentistry, Tsurumi University School of Dental Medicine

Abstract

The formation processes of denture plaque and denture calculus were observed by optical microscopy and transmission electron microscopy. The distribution of calcium was studied using electron probe X-ray micro analysis (EPMA). Materials were obtained from 3 volunteers who wore an acrylic resin plate for 6 hours, 3 days and 7 days, and 5 complete denture wearers who wore dentures for 5 to 10 years.<BR>The denture pellicle was adhered to the denture surface in 6 hours, then the denture plaque was observed3 days later. The denture plaque showed thicker layers and the intermicrobial matrix was formed on the surface in 7 days. Amorphous electron dense deposits appeared in the intermicrobial substances, although no mineral crystals were observed. The lamellated substance (LS) appeared in the denture plaque of the denture patients. The initial mineral crystals of calcium phosphate appeared along the plasma membrane of microorganisms and the lamellated substance and changed into calcification and denture calculus. Consequently, mechanical cleaning and chemical washing were necessary to eliminate the denture plaque and denture calculus. Furthermore, LS of the organic matter below the denture calculus had to be removed by the chemical method.

Journal

  • Nihon Hotetsu Shika Gakkai Zasshi

    Nihon Hotetsu Shika Gakkai Zasshi 43(4), 649-658, 1999-08-10

    Japan Prosthodontic Society

References:  34

Cited by:  1

Codes

  • NII Article ID (NAID)
    10008173951
  • 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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