Chinese Medical Sciences Journal ›› 2012, Vol. 27 ›› Issue (3): 167-170.doi: 10.1016/S1001-9294(14)60050-X

• Original Article • Previous Articles     Next Articles

Comparison of Clinical Effects of Au-Pt Based and Ni-Cr Based Porcelain Crowns

Li-chun Wu1*, Ye Shi1, Teng Ma2   

  1. 1Department of Stomatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
    2Department of Stomatology, First Hospital of Huairou District, Beijing 101500, China
  • Received:2012-06-01 Revised:2012-10-08 Published:2012-10-08 Online:2012-10-08
  • About author:*Corresponding author Tel: 86-10- 65198034, E-mail:

To compare the long-term clinical effects of two kinds of crowns and bridges made of porcelain fused to Au-Pt alloy and Ni-Cr alloy. Methods A total of 131 teeth (64 patients) were rehabilitated using porcelain-fused-to-metal crowns, among which 59 were rehabilitated with Au-Pt alloy metal ceramic crown and 72 with Ni-Cr alloy metal ceramic crown.The porcelain fracture, shade, marginal adaptation, gingival discoloration, and gingival status after finishing restoration and 36 months of follow-up were evaluated.
Results After 36 months of restoration, porcelain fused to Au-Pt alloy crown showed better clinical effects than porcelain fused to Ni-Cr alloy crown in shade, marginal adaptation, gingival discoloration, as well as gingival status (all P<0.05).
Conclusion The Au-Pt alloy ceramic crown is superior to Ni-Cr alloy ceramic crown in long-term clinical effects.

Key words: Au-Pt alloy, Ni-Cr alloy, porcelain-fused-to-metal crown, clinical evaluation

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