Bond Strength of Veneering Ceramics to a Graded Zirconia Core

Abstract:

To evaluate bond strength of veneering ceramics to a graded zirconia core. Two zirconia core ceramics (Y-TZP and graded zirconia) were fabricated and veneered with IPS e.max Ceram. A metal ceramic system (IPS d.SIGN, Ivoclar Vivadent, Liechtenstein) was used as a control group for the two all-ceramic test groups (n=20). Shear bond strength test and microtensile bond strength test were conducted by a universal testing machine. Fracture surfaces were also evaluated to determine the failure modes. Additionally, one-way ANOVA and Tukey's HSD tests were used to analyze the data. The shear bond strength test and microtensile bond strength test showed the familiar results. Graded zirconia exhibited the highest bond strength value (SBS: 31.01±2.01 MPa, MTBS: 40.95±1.95 MPa), significantly higher than that of Y-TZP (SBS: 28.14±2.28 MPa, 37.99±2.83 MPa). No significant differences were found between the metal core group and the two zirconia core groups. All test groups demonstrated cohesive failure within the veneer, as well as adhesive failure between the core and the veneer. Glass infiltration to zirconia may affect bond strength between zirconia core and veneering ceramics. A graded zirconia glass structure exhibits a benign bond to a veneering ceramics which could be similar to that of a metal ceramic system.

• Periodical: Advanced Materials Research (Volume 624)
• Pages: 221-225
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.624.221
• Online since: December 2012
• Authors: Shan Yu Zhou, Long Quan Shao, Jun Ai, Chen Hu, Lin Lin Wang, Ning Wen, Bin Deng
• Keywords: Graded Structure, Microtensile Bond Strength, Shear Bond Strength, Zirconia

References

[1] V.C. Bachhav, M.A. Aras, Zirconia-based fixed partial dentures: a clinical review, Quintessence Int. 42 (2011) 173-182.

[2] R. Augstin-Panadero, A. Fons-Font, J.L. Roman-Rodriguez, M. Granell-Ruiz, J. Del Rio- Highsmith, M.F. Sola-Ruiz, Zirconia versus metal: a preliminary comparative analysis of ceramic veneer behavior, Int J Prosthodont. 25 (2012) 294-300.

[3] R. Mosharraf, M. Rismanchian, O. Savabi, A.H. Ashtiani, Influence of surface modification techniques on shear bond strength between different zirconia cores and veneering ceramics, J Adv Prosthodont. 3 (2011) 221-228.

DOI: 10.4047/jap.2011.3.4.221

[4] B. Stawarczyk, M. Ozcan, M. Roos, A. Trottmann, I. Sailer, C.H. Hämmerle, Load-bearing capacity and failure types of anterior zirconia crowns veneered with overpressing and layering techniques, Dent Mater. 27 (2011) 1045-1053.

DOI: 10.1016/j.dental.2011.07.006

[5] N. Ereifej, F.P. Rodrigues, N. Silikas, D.C. Watts, Experimental and FE shear-bonding strength at core/veneer interfaces in bilayered ceramics, Dent Mater. 27 (2011) 590-597.

DOI: 10.1016/j.dental.2011.03.001

[6] Y. Zhang, M.J. Sun, D. Zhang, Designing functionally graded materials with superior load-bearing properties, Acta Biomater. 8 (2012) 1101-1108.

DOI: 10.1016/j.actbio.2011.11.033

[7] F. Beuer, M. Stimmelmayr, J.F. Gueth, D. Edelhoff, M. Naumann, In vitro performance of full-contour zirconia single crowns, Dent Mater. 28 (2012) 449-456.

DOI: 10.1016/j.dental.2011.11.024

[8] Y. Zhang, J.W. Kim, Graded structures for damage resistant and aesthetic all-ceramic restorations, Dent Mater. 25 (2009) 781-790.

DOI: 10.1016/j.dental.2009.01.002

[9] M. Ishibe, A.J. Raigrodski, B.D. Flinn, K.H. Chung, C. Spiekerman, R.R. Winter, Shear bond strengths of pressed and layered veneering ceramics to high-noble alloy and zirconia cores, J Prosthet Dent. 106 (2011) 29-37.

DOI: 10.1016/s0022-3913(11)60090-5

[10] J. Teng, H. Wang, Y. Liao, X. Liang, Evaluation of a conditioning method to improve core-veneer bond strength of zirconia restorations, J Prosthet Dent. 107 (2012) 380-387.

DOI: 10.1016/s0022-3913(12)60095-x

[11] M.V. López-Mollá, M.A. Martínez-González, J.F. Mañes-Ferrer, V. Amigó-Borrás, K. Bouazza- Juanes, Bond strength evaluation of the veneering-core ceramics bonds, Med Oral Patol Oral Cir Bucal. 15 (2010) 919-923.

DOI: 10.4317/medoral.15.e919

[12] A. Saito, F. Komine, M.B. Blatz, H. Matsumura, A comparison of bond strength of layered veneering porcelains to zirconia and metal, J Prosthet Dent. 104 (2010) 247-257.

DOI: 10.1016/s0022-3913(10)60133-3

[13] Z. Ozkurt, E. Kazazoglu, A. Unal, In vitro evaluation of shear bond strength of veneering ceramics to zirconia, Dent Mater J. 29 (2010) 138-146.

DOI: 10.4012/dmj.2009-065

[14] Y. Zhang, H. Chai, J.J. Lee, B.R. Lawn, Chipping resistance of graded zirconia ceramics for dental crowns, J Dent Res. 91 (2012) 311-315.

DOI: 10.1177/0022034511434356

[15] L. Ren, M.N. Janal, Y. Zhang, Sliding contact fatigue of graded zirconia with external esthetic glass, J Dent Res. 90 (2011) 1116-1121.

DOI: 10.1177/0022034511412075