Experimental Evaluation of Fracture Pattern in Bilayered All-Ceramic Molar Crowns

Abstract:

Due to the lower opacity and translucency of many core materials, bilayered ceramic crowns were introduced to obtain sufficient veneer support and to improve aesthetics. Interfaces can have significant influence on the mechanical performance of layered structures. Veneer chipping and zirconia frameworks fractures are critical issues in all-ceramic restorations. The objective of this study was to assess failure analysis of bilayered all-ceramic molar crowns, evidenced by different type of fractures. Experiments were conducted on a right first maxillary molar. Bilayered all-ceramic crowns were obtained with a 0.5 mm thick zirconia milled framework and veneered with hot-pressed ceramics. The specimens were tested at compressive load until failure. The typical macroscopic crack pattern of all samples showed that crack propagation resulted in more broken pieces with sharp edges. Ceramic materials show considerable variation in strength due to their extreme sensitivity to cracks. Understanding the fracture behavior of dental ceramics and its relation to different materials and restorations is important from a clinical point of view.

• Periodical: Defect and Diffusion Forum (Volume 376)
• Pages: 101-110
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.376.101
• Online since: July 2017
• Authors: Liliana Porojan, Sorin Porojan*, Lucian Rusu, Adrian Boloș, Cristina Savencu, Aurora Antoniac, Sebastian Gradinaru
• Keywords: Crowns, Failure Analysis, Fracture, Molar, Veneer, Zirconia

References

[1] E.D. Rekow, N.R. Silva, P.G. Coelho, Y. Zhang, Guess P, V.P. Thompson. Performance of dental ceramics: challenges for improvements. J Dent Res 90 (2011) 937–52.

DOI: 10.1177/0022034510391795

[2] M. Gehrt, S. Wolfart, N. Rafai, S. Reich, D. Edelhoff, Clinical results of lithium-disilicate crowns after up to 9 years of service. Clin Oral Investig 17 (2013) 275–84.

DOI: 10.1007/s00784-012-0700-x

[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). 221–8.

DOI: 10.4047/jap.2011.3.4.221

[4] G. Gostemeyer, M. Jendras, M.P. Dittmer, F.W. Bach, M. Stiesch, P. Kohorst. Influence of cooling rate on zirconia/veneer interfacial adhesion. Acta Biomater 6 (2010) 4532–8.

DOI: 10.1016/j.actbio.2010.06.026

[5] M.P. Dittmer, L. Borchers, M. Stiesch, P. Kohorst. Stresses and distortions within zirconia-fixed dental prostheses due to the veneering process. Acta Biomater 5 (2009) 3231–9.

DOI: 10.1016/j.actbio.2009.04.025

[6] M. Guazzato, K. Proos, L. Quach, M.V. Swain. Strength, reliability and mode of fracture of bilayered porcelain/zirconia (Y-TZP) dental ceramics. Biomater 25 (2004) 5045–52.

DOI: 10.1016/j.biomaterials.2004.02.036

[7] J. Fischer, P. Grohmann, B. Stawarczyk. Effect of zirconia surface treatments on the shear strength of zirconia/veneering ceramic composites. Dent Mater J 27 (2008) 448–54.

DOI: 10.4012/dmj.27.448

[8] H.J. Kim, H.P. Lim, Y.J. Park, M.S. Vang. Effect of zirconia surface treatments on the shear bond strength of veneering ceramic. J Prosthet Dent 105 (2011) 315–22.

DOI: 10.1016/s0022-3913(11)60060-7

[9] H. Chai, J.J.W. Lee, A.J. Mieleszko, S.J. Chu, Y. Zhang. On the interfacial fracture of porcelain/ zirconia and graded zirconia. Acta Biomater 10 (2014) 3756–61.

DOI: 10.1016/j.actbio.2014.04.016

[10] G. Wang, S. Zhang, C. Bian, H. Kong. Fracture mechanics analyses of ceramic/veneer interface under mixed-mode loading. J Mech Behav Biomed Mater 39 (2014) 119–28.

DOI: 10.1016/j.jmbbm.2014.07.019

[11] G. Wang, S. Zhang, C. Bian, H. Kong. Interface toughness of a zirconia–veneer system and the effect liner application. J Prosthet Dent 112 (3) (2014) 576–83.

DOI: 10.1016/j.prosdent.2013.12.010

[12] P. Kosyfaki, M.V. Swain, Adhesion determination of dental porcelain to zirconia using the schwickerath test: strength vs. fracture energy approach. Acta Biomater 10 (2014) 4861–9.

DOI: 10.1016/j.actbio.2014.07.028

[13] A. Kotousov, B. Kahler, M. Swain. Analysis of interfacial fracture in dental restorations. Dent. Mater. 27 (11) (2011) 1094–101.

DOI: 10.1016/j.dental.2011.06.009

[14] M.M. Mirsayar, P. Park. Modified maximum tangential stress criterion for fracture behavior of zirconia/veneer interfaces. J Mech Behav Biomed Mater 59 (2016) 236-40.

DOI: 10.1016/j.jmbbm.2015.11.037

[15] M. Zahran, O. El-Mowafy, L. Tam, P.A. Watson, Y. Finer, Fracture strength and fatigue resistance of all-ceramic molar crowns manufactured with CAD/CAM technology. J Prosthodont 17 (2008).

DOI: 10.1111/j.1532-849x.2008.00305.x

[16] Thompson, Influence of relative layer height and testing method on the failure mode and origin in a bilayered dental ceramic composite. Dent Mater 16 (2000) 235–43.

DOI: 10.1016/s0109-5641(00)00005-1

[17] A. Della Bona, K.J. Anusavice, J.J. Mecholsky Jr, Apparent interfacial fracture toughness of resin/ceramic systems. J Dent Res 85 (2006) (11) 1037–41.

DOI: 10.1177/154405910608501112

[18] A. Della Bona, Bonding to ceramics: scientific evidences for clinical dentistry. 1st ed.: Artes Médicas, São Paulo, (2009).

[19] M.J. Tholey, C. Berthold, M.V. Swain, N. Thiel, XRD2 micro-diffraction analysis of the interface between Y-TZP and veneering porcelain: role of application methods. Dent Mater 26(6) (2010) 545–52.

DOI: 10.1016/j.dental.2010.02.002

[20] M.V. Swain, Unstable cracking (chipping) of veneering porcelain on all-ceramic dental crowns and fixed partial dentures, Acta Biomater 5(5) (2009) 1668–77.

DOI: 10.1016/j.actbio.2008.12.016

[21] C.C. Gonzaga, P.F. Cesar, W.G. Miranda Jr, H.N. Yoshimura, Slow crack growth and reliability of dental ceramics. Dent Mater. 27(4) (2011) 394-406.

DOI: 10.1016/j.dental.2010.10.025

[22] D.J. Green, An introduction to the mechanical properties of ceramics. Cambridge: University Press; (1998).

[23] J.B. Wachtman Jr, Mechanical properties of ceramics. John Wiley & Sons, New York (1996).

[24] J.E. Ritter, Predicting lifetimes of materials and material structures. Dent Mater 11 (1995) 142–6.

[25] I. Sailer, A. Feher, F. Filser, L.J. Gauckler, H. Luthy, C.H. Hammerle, Five-year clinical results of zirconia frameworks for posterior fixed partial dentures, Int. J. Prosthodont. 20 (2007) 383–388.

[26] I. Sailer, A. Feher, F. Filser, H. Luthy, L.J. Gauckler, P. Scharer, C.H. Franz Hammerle, Prospective clinical study of zirconia posterior fixed partial dentures: 3-yearfollow-up, Quintessence Int. 37 (2006) 685–693.

[27] I. Sailer, J. Gottnerb, S. Kanelb, C.H. Hammerle, Randomized controlled clinical trial of zirconia-ceramic and metal-ceramic posterior fixed dental prostheses: a 3-year follow-up, Int. J. Prosthodont. 22 (2009) 553–560.

DOI: 10.11607/ijp.3368

[28] A.J. Raigrodski, G. J. Chiche , N. Potiket, J.L. Hochstedler, S.E. Mohamed, S. Billiot, D.E. Mercante, The efficacy of posterior three- unit zirconium-oxide-based ceramic fixed partial dental prostheses: a prospective clinical pilot study, J. Prosthet. Dent. 96 (2006).

DOI: 10.1016/j.prosdent.2006.08.010

[29] M.K. Molin, S.L. Karlsson, Five-year clinical prospective evaluation of zirconia-based Denzir 3-unit FPDs, Int. J. Prosthodont. 21 (2008) 223–227.

[30] M. Roediger, N. Gersdorff, A. Huels, S. Rinke, Prospective evaluation of zirconia posterior fixed partial dentures: four-year clinical results, Int. J. Prosthodont. 23 (2010) 141–148.

DOI: 10.11607/ijp.3229

[31] J. Schmitt, S. Holst, M. Wichmann, S. Reich, M. Gollner, J. Hamel, Zirconia posterior fixed partial dentures: a prospective clinical 3-year follow-up, Int. J. Prosthodont. 22 (2009) 597–603.

[32] M. Schmitter, K. Mussotter, P. Rammelsberg, T. Stober, B. Ohlmann, O. Gabbert, Clinical performance of extended zirconia frameworks for fixed dentalprostheses: two-yearresults, J. Oral Rehabil. 36 (2009) 610–615.

DOI: 10.1111/j.1365-2842.2009.01969.x

[33] P. Vultvon Steyern, P. Carlson, K. Nilner, All-ceramic fixed partial dentures designed according to the DC-Zirkontechnique. A 2-year clinical study, J. Oral Rehabil. 32 (2005) 180–187.

DOI: 10.1111/j.1365-2842.2004.01437.x

[34] M. Tsumita, Y. Kokubo, C. Ohkubo, S. Sakurai, S. Fukushima, Clinical evaluation of posterior all-ceramic FPDs (Cercon): a prospective clinical pilot study, J. Prosthodont. Res. 54 (2010) 102–105.

DOI: 10.1016/j.jpor.2010.01.001

[35] P. Triwatana, N. Nagaviroj, C. Tulapornchai, Clinical performance and failures of zirconia-based fixed partial dentures: a review literature, J. Adv. Prosthodont. 4 (2012) 76–83.

DOI: 10.4047/jap.2012.4.2.76

[36] S.R. Ha, S.H. Kim, J.B. Lee, J.S. Han, I.S. Yeo, Effects of coping designs on fracture modes in zirconia crowns: Progressive load test, Ceramics International 42 (2016) 7380–7389.

DOI: 10.1016/j.ceramint.2016.01.141

[37] N. Ereifej, F.P. Rodrigues, N. Silikas, D.C. Watts, Experimental FE shear-bonding strength at core/veneer interfaces in bilayered ceramics. Dent Mater 27(6) (2011) 590–7.

DOI: 10.1016/j.dental.2011.03.001

[38] A. Della Bona, K.J. Anusavice, P.H. DeHoff, Weibull analysis and flexural strength of hot-pressed core and veneered ceramic structures. Dent Mater 19(7) (2003) 662–9.

DOI: 10.1016/s0109-5641(03)00010-1

[39] K. Zeng, A. Oden, D. Rowcliffe, Evaluation of mechanical properties of dental ceramic core materials in combination with porcelains. Int J Prosthodont 11(2) (1998) 183–9.

[40] M. Sebastiani, F. Massimi, G. Merlati, E. Bemporad. Residual micro-stress distributions in heat-pressed ceramic on zirconia and porcelain-fused to metal systems: Analysis by FIB-DIC ring-core method and correlation with fracture toughness. Dent Mater 31(11) (2015).

DOI: 10.1016/j.dental.2015.08.158

[41] M. Ferrari, A. Giovannetti, M. Carrabba, G. Bonadeo, C. Rengo, F. Monticelli, A. Vichi. Fracture resistance of three porcelain-layered CAD/CAM zirconia frame designs. Dent Mater 30(7) (2014) e163-8.

DOI: 10.1016/j.dental.2014.02.004