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Purpose: The aim of this research was to evaluate the shear bond strength of different zirconia veneering ceramics with and without liner glass materials to yttria partially-stabilized tetragonal zirconia polycrystalline(Y-TZP). Methods: Five co mmercial zirconia veneering ceramics were used in this study, E-Max(EM), Creation ZI(CR), Cercon ceram kiss(CE), Triceram(TR) and Zirkonzahn ICE(ZI). All samples were prepared according to manufacturer's instructions. Experimental industrially manufactured Y-TZP ceramic blocks(diameter: 2.7 mm; height: 13.5 mm) were used in this study. Shear bond strength between zirconia ceramic coping and zirconia veneering ceramics were evaluated by the push-shear bond test. The fracture load data were analyzed using ANOVA and Scheffe's test(${\alpha}$=0.05). The fractured surfaces of zirconia core ceraimc and zirconia veneering ceramics were observed using a scanning electron microscope(SEM). Results: The mean shear bond strengths ranged from 20 MPa ($20.12{\pm}6.34$ MPa) to 66.6 MPa ($66.62{\pm}10.01$ MPa). The Triceram(TRG) showed the highest value and Creation ZI(CR) showed the lowest value. In all groups, Zirconia liner and glass material groups was significantly higher shear bond strength than without liner(P<0.05), with the exception of Cercon ceram kiss(CE)groups. Conclusion: Zirconia bonding materials may have the advantage of improved bond strength between zirconia ceramic core and veneering ceramics.
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참고문헌 (21)
참고문헌 신청
Aboushelib MN / 2005 / Microtensile bond strength of different components of core veneered all-ceramic restorations / Dent mater 21:984~991
Aboushelib MN / 2008 / Effect of zirconia type on its bond strength with different veneer ceramics / Journal of Prosthodontics :1~8
Aboushelib MN / 2006 / Microtensile bond strength of different components of core veneered all ceramic restorations. PartⅡ: Zirconia veneering ceramics / Dent Mater 22:857~863
AI-Dohan HM / 2004 / Shear strength of core-veneer interface in bi-layered ceramics / J Prosthet Dent 91:349~355
Albakry M / 2003 / Fracture toughness and hardness evaluation of three pressible all-ceramic dental materials / J Dent 31:181~188
Aboushelib MN / 2008 / Effect of zirconia type on its bond strength with different veneer ceramics / Journal of Prosthodontics :1~8
Aboushelib MN / 2006 / Microtensile bond strength of different components of core veneered all ceramic restorations. PartⅡ: Zirconia veneering ceramics / Dent Mater 22:857~863
AI-Dohan HM / 2004 / Shear strength of core-veneer interface in bi-layered ceramics / J Prosthet Dent 91:349~355
Albakry M / 2003 / Fracture toughness and hardness evaluation of three pressible all-ceramic dental materials / J Dent 31:181~188
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