title: [Comparison of color reappearance between metal-ceram restoration and foundry-ceram restoration using crystaleye spectrophotometer].
abstract: OBJECTIVE
  To study the color reappearance effect of metal-ceram restoration and foundry-ceram restoration using Crystaleye spectrophotometer.
  
  
  METHODS
  58 metal-ceram restorations and 58 foundry-ceram restorations according to the result of the Crystaleye spectrophotometer were made respectively. The deltaE between restorations and natural teeth as referenced were analyzed. And satisfaction of dentists and patients were evaluated.
  
  
  RESULTS
  The deltaE between metal-ceram restorations and natural teeth was 7.13 +/- 0.74. The deltaE between foundry-ceram restorations and teeth was 1.47 +/- 0.84. There were statistical differences between the deltaE (P < 0.01). The satisnatural faction of dentists and patients to the foundry-ceram restorations were higher than to the metal-ceram restorations (P < 0.05).
  
  
  CONCLUSIONS
  Crystaleye spectrophotometer can provide accurate reference for foundry-ceram restoration, but for metal-ceram restoration it is not accurate.
authors.affiliation: Dept. of Cadre, Stomatology Hospital of China Medical University, Shenyang 110002, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Shi
authors.forename: Ning
authors.initials: N
authors.lastname: Zhang
authors.forename: Fan-wen
authors.initials: FW
authors.lastname: Kong
authors.forename: De-song
authors.initials: DS
authors.lastname: Zhan
mesh_terms: D003116:Color; D006801:Humans; D008670:Metals; D013053:Spectrophotometry; D014070:Tooth
chemical_list: D008670:Metals