Chinese Journal of Tissue Engineering Research ›› 2011, Vol. 15 ›› Issue (47): 8915-8918.doi: 10.3969/j.issn.1673-8225.2011.47.044

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Ceramic to metal combination properties of self-made Co-Cr alloy

Zhao Xiang-yu1, Zhan De-song2, Sun Yi3, Fan Zhe3   

  1. 1Department of Prosthodontics, 3Mechanic Room, Shenyang Stomatological Hospital, Shenyang  110002, Liaoning Province, China; 2Department of Materials, Stomatological Hospital of China Medical University, Shenyang  110002, Liaoning Province, China
  • Received:2011-04-12 Revised:2011-05-21 Online:2011-11-19 Published:2011-11-19
  • Contact: Zhan De-song, Professor, Department of Materials, Stomatological Hospital of China Medical University, Shenyang 110002, Liaoning Province, China zhandesong@126.com
  • About author:Zhao Xiang-yu★, Studying for master’s degree, Attending physician, Department of Prosthodontics, Shenyang Stomatological Hospital, Shenyang 110002, Liaoning Province, China 191718713@qq.com

Abstract:

BACKGROUND: Co-Cr alloy has better biocompatibility, anti-corrosion and stability than Ni-Cr and Ti alloy. It is more and more used extensively.
OBJECTIVE: Compared to the Germany BEGO cobalt-chromium alloy, to make initial evaluation to the combination of ceramic to metal of the new-type Co-Cr alloys.
METHODS: VITA MK95 porcelain powder of 8 mm×3 mm×1 mm was fused to the two types of alloys of 25 mm×3 mm×0.5 mm and the combination of ceramic to metal of the two types of alloys was tested using three-point flexure bond test and scanning electron microscope.
RESULTS AND CONCLUSION: For two kinds of alloys after strength loading, ceramic layer cracked and detached completely at the same time, gray-black oxide film formed on the alloy surface, and there was no significant residual porcelain (P > 0.05). The bonding of ceramic to metal of the new type Co-Cr alloys is greater than the basic value of the required ISO (25 MPa), which do not different from that of the Germany BEGO and meet the clinical requirements.

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