title: Colour matching of composite resin cements with their corresponding try-in pastes.
abstract: Two shades of four resin cements (Calibra, Clearfil Esthetic, Insure, Variolink II), in light- and dual-curing modes, were tested for colour matching with their corresponding try-in pastes, immediately after photopolymerization and after 24-hour dry and dark storage. Colour measurements were performed for 0.8 mm-thick specimens through a 0.8mm-thick ceramic plate. For each resin cement, colour differences (deltaE) were calculated between the two curing modes, and between the corresponding try-in paste, at baseline and after 24h. deltaE>0 values were detected between all resin cements and their try-in pastes, which were brand/shade/curing mode depended. The try-in pastes of the Variolink II system demonstrated the best colour matching (deltaE<2). Try-in pastes of Calibra and Insure, at both curing modes, did not match at an acceptable value, the shade of their corresponding resin cements (deltaE>3.3). Calibra presented the highest colour differences. deltaE values of the Clearfil Esthetic system immediately after photo-activation ranged between 2 and 3 units. A ceramic restoration may fail aesthetically as a result of not acceptable colour match (deltaE>3.3) between the shade of certain resin cements and their relevant try-in pastes.
authors.forename: D
authors.initials: D
authors.lastname: Kampouropoulos
authors.forename: M
authors.initials: M
authors.lastname: Gaintantzopoulou
authors.forename: E
authors.initials: E
authors.lastname: Papazoglou
authors.forename: A
authors.initials: A
authors.lastname: Kakaboura
mesh_terms: D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D002484:Cementation / Q000379:methods; D002516:Ceramics / Q000737:chemistry; D003116:Color; D003188:Composite Resins / Q000737:chemistry*; D004955:Esthetics, Dental; D006801:Humans; D055115:Light-Curing of Dental Adhesives / Q000379:methods; D008422:Materials Testing; D058105:Polymerization; D011109:Polymethacrylic Acids / Q000737:chemistry; D019279:Resin Cements / Q000737:chemistry*; D055116:Self-Curing of Dental Resins / Q000379:methods; D013997:Time Factors
chemical_list: C433205:Calibra; D003188:Composite Resins; C096479:Insure Cement; D011109:Polymethacrylic Acids; D019279:Resin Cements; C530542:clearfil esthetic cement; C103502:Variolink; D017438:Bisphenol A-Glycidyl Methacrylate