Comparison of clinical effects of au-pt based and ni-cr based porcelain crowns.
- Author:
Wu LI-CHUN
1
;
Shi YE
;
Ma TENG
Author Information
- Publication Type:Journal Article
- MeSH: Adolescent; Adult; Aged; Chromium Alloys; Crowns; Female; Gold Alloys; Humans; Male; Metal Ceramic Alloys; Middle Aged
- From: Chinese Medical Sciences Journal 2012;27(3):167-170
- CountryChina
- Language:English
-
Abstract:
OBJECTIVETo 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.
METHODSA 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.
RESULTSAfter 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).
CONCLUSIONThe Au-Pt alloy ceramic crown is superior to Ni-Cr alloy ceramic crown in long-term clinical effects.
