title: [Color-difference evaluation of denture base resin based on CIECAM02 color appearance model].
abstract: OBJECTIVE
  To compare the following color-difference equations: CMC, DE2000, CAM02-LCD, CAM02-SCD, CAM020-UCS, and to search for the most appropriate one to evaluate denture base resin.
  
  
  METHODS
  Thirty-five denture based resin pieces which were aging during different time were measured using SP62 spectrophotometer and the color-difference was calculated using the above equations. PF/3, STRESS, and F-test of every calculation result were compared.
  
  
  RESULTS
  PF/3 of CMC, DE2000, CAM02-LCD, CAM02-SCD, CAM020-UCS were: 22.448, 22.220, 22.840, 21.760, 22.049; STRESS of those were: 0.205, 0.228, 0.260, 0.192, 0.240.
  
  
  CONCLUSIONS
  By comprehensive comparison of PF/3, STRESS and F-test, CAM02-SCD is the most appropriate equation for denture base resin, which was followed by CMC. The scatter diagram of color-difference showedthat color difference measured by instrument method is more objective and accurate compared with human eyes.
authors: Peking University School, Beijing, China.
authors: Zhi-min
authors: ZM
authors: Guo
authors: Hong
authors: H
authors: Lin
authors: Gang
authors: G
authors: Zheng
authors: Wei
authors: W
authors: Bai
mesh_terms: D003116:Color; D003124:Colorimetry / Q000379:methods; D003819:Denture Bases; D017797:Prosthesis Coloring; D012117:Resins, Synthetic / Q000737:chemistry*
chemical_list: D012117:Resins, Synthetic