Clinical Evaluation of Porcelain Fused to Electroformed Gold Coping Crowns : Preliminary Results after 30-43 Months

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著者

    • KOKUBO Yuji
    • Department of Fixed Prosthodontics, School of Dental Medicine, Tsurumi University
    • TSUMITA Mitsuyoshi
    • Department of Fixed Prosthodontics, School of Dental Medicine, Tsurumi University
    • OHKUBO Chikahiro
    • Department of Removable Prosthodontics, School of Dental Medicine, Tsurumi University
    • SAKURAI Satoe
    • Division of Oral and Maxillofacial Implantology, School of Dental Medicine, Tsurumi University
    • FUKUSHIMA Shunji
    • Department of Fixed Prosthodontics, School of Dental Medicine, Tsurumi University

抄録

<B>Purpose:</B> Porcelain-fused-to-gold copings prepared by the electroforming technique were introduced as an alternative to conventional metal/ceramic crowns. However, there are few clinical studies that have evaluated this technique. The purpose of this study was to prospectively evaluate the clinical performance of Auro Galvano Crowns (AGCs).<BR><B>Methods:</B> One hundred and twenty-seven AGCs were used to treat patients at the Tsurumi University Dental Hospital from October 2002 to December 2003. All the crowns were evaluated using the modified California Dental Association (CDA) quality assessment system at baseline and at all follow-up appointments.<BR><B>Results:</B> A total of 122, 119, and 72 crowns were examined at the 1-, 2-, and 3-year follow-ups, respectively. During the observation period, four crowns were removed because of partial fracture of the veneered porcelain in premolar and posterior teeth. No chips were detected during this observation period. All of the crowns examined were rated as satisfactory according to the modified CDA quality assessment system. During this period, the cumulative survival rate was 96.1%.<BR><B>Conclusion:</B> Within the limitations of this clinical study, AGCs luted with adhesive resin cement functioned satisfactorily with a relatively low fracture rate compared to porcelain-fused-to-metal (PFM) and all-ceramic crowns. Since the observation period was short, long-term observation will be necessary in order to further evaluate these crowns.

収録刊行物

  • Prosthodontic research & practice  

    Prosthodontic research & practice 6(1), 50-56, 2007-01-01 

    Japan Prosthodontic Society

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各種コード

  • NII論文ID(NAID)
    10018731675
  • NII書誌ID(NCID)
    AA11728086
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13477021
  • データ提供元
    CJP書誌  J-STAGE 
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