陶材前装コーヌスクローネ用合金に関する研究 : 第1報 多目的用金合金の焼付強度  [in Japanese] Study on Porcelain-Fused Alloy for Conical Double-Crown Telescopics Prosthesis : Part 1 Bond Strength of Multi-Purpose Gold Alloy  [in Japanese]

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Author(s)

    • 清野 豊 KIYONO Yutaka
    • 昭和大学歯学部第三歯科補綴学教室 The Third Department of Prosthodontics, Showa University School of Dentistry
    • 芝 あき彦 SHIBA Akihiko
    • 昭和大学歯学部第三歯科補綴学教室 The Third Department of Prosthodontics, Showa University School of Dentistry

Abstract

Multi-purpose gold alloys (Degunorm, Degudent LTG) were investigated as casting metal for conical double-crown telescopic prosthesis. Bond strength between porcelain and metal was compared to conventional ceramo-metal system. In addition, bond strength with some four treatments was also examined. The results were as follows:<BR>1. Bond strength of multi-purpose gold alloy with its original low-fused porcelain was similar to those of conventional dental porcelain-fused metal.<BR>2. Bond strength of Degunorm painted bonding agent after sandblasting showed the highest value under all test conditions in this study.<BR>3. According to SEM observation, body-opaque interface after firing was definite. However, bondingopaque interface was not distinguishable.<BR>4. The values of Vickers hardness (Hv) for body, opaque and bonding porcelain were 712, 325 and 468respectively.<BR>5. Particle size of opaque porcelain was approximately 50 pm, and was coarser than that of bonding porcelain.<BR>6. Leucite was detected in all of porcelain powders before firing. However, the leucite peak of body powder drawn in the X-ray diffraction chart was not obviously steep because it was amorphous.

Journal

  • Nihon Hotetsu Shika Gakkai Zasshi

    Nihon Hotetsu Shika Gakkai Zasshi 43(5), 781-790, 1999-10-10

    Japan Prosthodontic Society

References:  33

Cited by:  1

Codes

  • NII Article ID (NAID)
    10008174299
  • 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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