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- Title
Clinical evaluation of the effect of gold alloy and Ni-Cr alloy porcelain fused metal crown restorations.
- Authors
SUN Wei-ge; LIU Xiang-hui; ZHANG Ling; ZHANG Chun; XIE Ming-yi; ZHOU Wen-juan
- Abstract
PURPOSE: To observe the clinical effect of gold alloy porcelain fused metal (PFM) crown restoration anti Ni-Cr alloy PFM crown restoration. METHODS: A total of 168 teeth from 48 patients were restored with gold alloy PFM crown. The other 48 patients, with a total of 179 teeth were restored with Ni-Cr alloy PFM crown. They were, examined in integrality, retention, shade, cervical margin, and gingival health immediately, 6 months, one year, two years and three years after restoration. The date was analyzed by rank sum test using SPSS12.0 software package. RESULTS: The clinical effect of Ni--Cr alloy PFM crown was as good as gold alloy PFM crown when checked up after cementation at once. However, when they were examined 6 months, one year, two years and three years after restoration, the clinical effect of gold alloy PFM crown group was significantly better than that of Ni-Cr alloy PFM crown, P<0.05. CONCLUSION: The gold alloy PFM crown has better properties than Ni-Cr alloy PFM crown as a kind of long-term restoration, especially on the aspect of shade.
- Subjects
GOLD alloys; NICKEL-chromium alloys; DENTAL ceramic metals; DENTAL fillings; DENTAL crowns
- Publication
Shanghai Journal of Stomatology, 2009, Vol 18, Issue 1, p40
- ISSN
1006-7248
- Publication type
Article