title: [Color differences between a resin cement and try-in paste].
abstract: OBJECTIVE
  This study was to measure the color coincidence and difference of resin cement and its try-in paste.
  
  
  METHODS
  3 shades of a resin cement and its try-in paste were measured and analyzed by CIE L*a*b* on a reflection spectrophotometer.
  
  
  RESULTS
  For shade 200, vulue of delta E* was less 1.4 in comparison between try-in paste and self-cured resin.
  
  
  CONCLUSIONS
  The try-in paste of shade 200 matched the self-cured resin cement very well, but the try-in paste was lighter and more yellow than the light-cured resin cement. The resin cement of shade 100 was darker and more yellow than try-in paste; resin cement of shade 300 was lighter and more yellow than try-in paste.
authors.affiliation: School of Stomatology, Beijing Medical University, Beijing 100081.
authors.forename: X
authors.initials: X
authors.lastname: Wang
authors.forename: J M
authors.initials: JM
authors.lastname: Powers
mesh_terms: D003116:Color; D003738:Dental Cements / Q000737:chemistry*; D017797:Prosthesis Coloring; D019279:Resin Cements / Q000737:chemistry*; D013053:Spectrophotometry
chemical_list: D003738:Dental Cements; D019279:Resin Cements