title: Colorimetric values of esthetic stainless steel crowns.
abstract: OBJECTIVE
  The colorimetric values of two different kinds of esthetic stainless steel crowns were measured and compared with the colorimetric values of primary anterior teeth in Japanese children.
  
  
  METHODS
  The colorimetric values of resin composite-faced stainless steel crowns (Kinder Krown) and epoxy-coated stainless steel crowns (White Steel Crown) were measured with a color difference meter. The Commission Internationale de Eclairage L*, a*, b*, and delta E*ab values and Munsell value, chroma, and hue were calculated. The data were compared with previously reported colorimetric values of Japanese primary anterior teeth measured with the same color difference meter used in this study.
  
  
  RESULTS
  Compared to Japanese primary anterior teeth, Kinder Krown Pedo I and Pedo II showed much higher L* values and lower hue; on the other hand, White Steel Crown showed much higher L*, a*, b* values, much higher value and chroma, and much lower hue.
  
  
  CONCLUSIONS
  Color analysis revealed that the colors of the White Steel Crown and Kinder Krown Pedo I were substantially different from the color of Japanese primary anterior teeth. The color difference between Pedo II crowns and Japanese primary anterior teeth was relatively high, but the color of Pedo II might be acceptable for clinical use.
authors.affiliation: Department of Pediatric Dentistry, Nagasaki University, School of Dentistry, 1-7-1, Sakamoto, Nagasaki, 852-8588, Japan. hosoya@net.nagasaki-u.ac.jp
authors.forename: Yumiko
authors.initials: Y
authors.lastname: Hosoya
authors.forename: Koichi
authors.initials: K
authors.lastname: Omachi
authors.forename: Michal
authors.initials: M
authors.lastname: Staninec
mesh_terms: D000465:Algorithms; D000704:Analysis of Variance; D002648:Child; D003116:Color; D003124:Colorimetry; D003188:Composite Resins / Q000737:chemistry; D003442:Crowns; D003481:Cuspid / Q000033:anatomy & histology; D003722:Dental Alloys / Q000737:chemistry*; D003801:Dental Veneers; D004853:Epoxy Resins / Q000737:chemistry; D004955:Esthetics, Dental; D006801:Humans; D007180:Incisor / Q000033:anatomy & histology; D007564:Japan; D013193:Stainless Steel / Q000737:chemistry*; D014094:Tooth, Deciduous / Q000033:anatomy & histology
chemical_list: D003188:Composite Resins; D003722:Dental Alloys; D004853:Epoxy Resins; D013193:Stainless Steel