鋳造歯冠用結晶化ガラスの色調再現性に関する研究 : 結晶析出量と透過率について  [in Japanese] Color Reproducibility of Castable Glass Ceramics : Amount of Crystalline Phase and Translucency  [in Japanese]

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Author(s)

    • 白井 伸一 SHIRAI Shinichi
    • 北海道医療大学歯学部歯科補綴学第II講座 Department of Fixed Prosthodontics, School of Dentistry, Health Sciences University of Hokkaido
    • 坂口 邦彦 SAKAGUCHI Kunihiko
    • 北海道医療大学歯学部歯科補綴学第II講座 Department of Fixed Prosthodontics, School of Dentistry, Health Sciences University of Hokkaido

Abstract

In recent years, castable glass ceramics have been used clinically as material in crown and bridge restorations. Materials used in such restorations must be not only strong enough to withstand masticatory and biting forces but also aesthetically close to the color of natural teeth.<BR>In order to establish a technique for enhancing the color reproducibility of castable glass ceramics, which is an essential factor for clinical application, the relationship between the amount of crystalline phase and total light transmission of the crystal was investigated. The results were as follows:<BR>1. Castable glass ceramics showed a high degree of translucency. A crystallization temperature of 910°C was found to be the most appropriate for the amount of HAP crystal, which has a translucency close to that of enamel.<BR>2. For enhancement of the color reproducibility of castable glass ceramics, consideration must be given not only to the color of the glass and the stain but also to the influence of the tooth substance and metal as well as the color of the cement.

Journal

  • Nihon Hotetsu Shika Gakkai Zasshi

    Nihon Hotetsu Shika Gakkai Zasshi 41(3), 513-517, 1997-06-01

    Japan Prosthodontic Society

References:  27

Codes

  • NII Article ID (NAID)
    10008166764
  • NII NACSIS-CAT ID (NCID)
    AN00197911
  • Text Lang
    JPN
  • Article Type
    ART
  • ISSN
    03895386
  • Data Source
    CJP  J-STAGE 
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