Evaluation of Various Surface Treatments for the Maximum Adhesion between a New Resin Cement and Three Types of Alloys

DOI 2 Citations
  • NITTA Yoshihito
    Department of Operative Dentistry, Faculty of Dentistry, Tokyo Medical and Dental University
  • SHIMIZU Makoto
    Department of Operative Dentistry, Faculty of Dentistry, Tokyo Medical and Dental University
  • NAKAJIMA Akitomi
    Department of Operative Dentistry, Faculty of Dentistry, Tokyo Medical and Dental University
  • INOKOSHI Shigehisa
    Department of Operative Dentistry, Faculty of Dentistry, Tokyo Medical and Dental University
  • TAKATSU Toshio
    Department of Operative Dentistry, Faculty of Dentistry, Tokyo Medical and Dental University
  • HOSODA Hiroyasu
    Department of Operative Dentistry, Faculty of Dentistry, Tokyo Medical and Dental University

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  • リン酸エステル系接着性レジンセメント・パナビアEXの各種表面処理された合金面に対する接着強さ

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Abstract

This study was performed to find the most effective surface treatment for obtaining the maximum adhesion between Panavia-EX, a new adhesive resin cement, and three types of dental casting alloys. The surface treatments of metals:sandblasting, EZ-Oxisor (electrical etching) and Kura-Ace (Sn-electro deposition) were used separately or in combination. Tensile bond strength of the cement to the metals after treatment was determined.<br> Sandblasting considerably increased the strength with Ni-Cr alloy and 20 K gold alloy, but decreased it with Au-Ag-Pd alloy. Kura-Ace extremely increased the strength with all types of alloys tested. EZ-Oxisor proved to be ineffective for improving the bond.<br> When the new resin cement is usid, the following procedures are recommended. The surfaces of 20 K gold alloy and Au-Ag-Pd alloy should be treated with Kura-Ace before cementing. The surface of Ni-Cr alloy must be subjected to Kura-Ace after sandblasting.

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