TODENTJ-25-03-2019_TODENTJ-7-123 1553505478 Bentham Open doi@benthamopen.net Bentham Open The Open Dentistry Journal TODENTJ 1874-2106 9 30 2013 7 1 T.T. Heikkinen J.P Matinlinna P.K. Vallittu L.V.J. Lassila Objective of this study was to evaluate the effects of long term water storage and ageing on the bond strength of resin composite cement to yttria-stabilized zirconium dioxide (zirconia) and dialuminium trioxide (alumina). Substrate specimens of alumina and zirconia were air particle abraded with dialuminium trioxide before priming and application of composite resin. Priming was made with gamma metharyloxy-trimethoxysilane or acryloxypropyl-trimethoxysilane monomer after which the intermediate dimethacrylate resin was applied and photopolymerized. This was followed by curing particulate composite resin cement (Relyx ARC) to the substrate as a resin stub. The ageing methods of the specimens (n=6) were: (1) they stored four years in 37±1ºC distilled water, (2) thermocycled 8000 times between 55±1ºC and 5±1ºC, (3) stored first in water for four years and then thermocycled. Specimens which were stored dry, were used as controls. Bonding of composite resin was measured by shear-bond strength test set-up. Both thermocycling and long-term water storage decreased significantly shear bond strength values compared to the control group (from the level of 20 MPa to 5 MPa) regardless of the used primer or the type of the substrate. Combination of four years water storage and thermocyling reduced the bond strength even more, to the level of two to three megapascals. In can be concluded that water storage and thermocycling itselves, and especially combination of water storage and thermocycling can cause considerable reduction in the bond strength of composite resin cement to alumina and zirconia. 9 30 2013 123 125 TODENTJ-7-123 1 10.2174/crossmark_policy opendentistryjournal.com benthamopen.com true Peer Reviewed Single blind Checked with iThenticate 2013-6-3 2013-8-16 2013-9-3 2013-9-30 http://creativecommons.org/licenses/by-nc/3.0/ 10.2174/1874210601307010123 1553505478 https://opendentistryjournal.com/VOLUME/7/PAGE/123/ https://opendentistryjournal.com/contents/volumes/V7/TODENTJ-7-123/TODENTJ-7-123.pdf https://opendentistryjournal.com/contents/volumes/V7/TODENTJ-7-123/TODENTJ-7-123.pdf https://opendentistryjournal.com/contents/volumes/V7/TODENTJ-7-123/TODENTJ-7-123.pdf https://opendentistryjournal.com/contents/volumes/V7/TODENTJ-7-123/TODENTJ-7-123.pdf https://opendentistryjournal.com/contents/volumes/V7/TODENTJ-7-123/TODENTJ-7-123.pdf https://opendentistryjournal.com/contents/volumes/V7/TODENTJ-7-123/TODENTJ-7-123.pdf https://opendentistryjournal.com/contents/volumes/V7/TODENTJ-7-123/TODENTJ-7-123.pdf https://opendentistryjournal.com/contents/volumes/V7/TODENTJ-7-123/TODENTJ-7-123.xml Dent Mater Kern M 14 64 1998 Kern M, Wegner SM. Bonding to zirconia ceramic: adhesion methods and their durability Dent Mater 1998; 14 : 64-71. Int J Prosthodont Matinlinna JP 17 155 2004 Matinlinna JP, Lassila LVJ, Özcan M, Yli-Urpo A, Vallittu PK. An introduction to silanes and their clinical applications in dentistry Int J Prosthodont 2004; 17 : 155-64. Dent Mater Özcan M 19 725 2003 Özcan M, Vallittu PK. Effect of surface conditioning methods on the bond strength of luting cement to ceramics Dent Mater 2003; 19 : 725-31. J Prosthet Dent Aboushelib MN 98 379 2007 Aboushelib MN, Kleverlaan CJ, Feilzer AJ. Selective infiltration etching technique for a strong and durable bond of resin cements to zirconia-based materials J Prosthet Dent 2007; 98 : 379-88. SRX Dent doi:103814/2010/295137 Heikkinen TT Heikkinen TT, Matinlinna JP, Vallittu PK, Lassila LVJ. Effect of primers and resins on the shear bond strength of resin composite to zirconia SRX Dent doi:103814/2010/295137 J Dent Gale MS 27 89 1999 Gale MS, Darvell BW. Thermal cycling procedures for laboratory testing of dental restorations J Dent 1999; 27 : 89-99. J Coat Technol Rosen MR 50 75 1978 Rosen MR. From treating solution to filler surface and beyond.the life history of a silane coupling agent J Coat Technol 1978; 50 : 75-8. J Dent Res Söderholm K-JM 72 1050 1993 Söderholm K-JM, Shang SW. Molecular orientation of silane at the surface of colloidal silica J Dent Res 1993; 72 : 1050-4.