ジルコニア・セラミックスに対するキャスタブル・セラミックスの鋳接 : 加熱処理の影響  [in Japanese] Fusing of Castable Ceramics to the Zirconia Ceramics : Effect of Heat Treatment  [in Japanese]

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Author(s)

    • 前田 利夫 MAEDA Toshio
    • 日本歯科大学新潟歯学部歯科補綴学教室第2講座 Department of Crown and Bridge, The Nippon Dental University, School of Dentistry at Niigata
    • 飯島 浩 IIJIMA Hiroshi
    • 日本歯科大学新潟歯学部歯科補綴学教室第2講座 Department of Crown and Bridge, The Nippon Dental University, School of Dentistry at Niigata
    • 畑 好昭 HATA Yoshiaki
    • 日本歯科大学新潟歯学部歯科補綴学教室第2講座 Department of Crown and Bridge, The Nippon Dental University, School of Dentistry at Niigata

Abstract

In order to apply UCC to post and cores or bridges, sintered zirconium (3Y 20 A) was selected as the reinforcing material. In order to combine cast OCC to 3 Y 20 A, it is necessary to line them with dental porcelain as a binder. In order to determine a higher bonding strength, this study was conducted to observe diffusing of ion, to discuss strength of 3Y 20 A itself and bonding strength, and to apply heat treatment (Ht) to the 3Y 20 A specimen bonded to dental porcelain. The results were as follows:<BR>1. K and Na ion diffused from dental porcelain to 3Y 20 A at 1, 200°C and 1, 400°C respectively.<BR>2. The permeation of glass constituents of porcelain into 3Y 20 A, and the formation of the reacted layerwith growth and transformation of crystalline grains were found according to diffused area at 1, 400°C This factor is improper because the strength of the reacted layer is less than that of dental porcelain.<BR>3. Annealing after machining 3Y 20 A is necessary because the strength of surface transformation increased by machining and decreased due to mutual transformation at 1, 200°C.<BR>4. In this bonding strength 3Y 20 A/OCC test, Duceratin opaque had a maximum value of 1, 200°C.

Journal

  • Nihon Hotetsu Shika Gakkai Zasshi

    Nihon Hotetsu Shika Gakkai Zasshi 42(2), 314-325, 1998-04-10

    Japan Prosthodontic Society

References:  18

Cited by:  2

Codes

  • NII Article ID (NAID)
    10008169367
  • 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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