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Journal of Prosthetic Dentistry

How oral environment simulation affects ceramic failure behavior

Published:September 16, 2017DOI:https://doi.org/10.1016/j.prosdent.2017.05.013

      Abstract

      Statement of problem

      Investigating the mechanical behavior of ceramics in a clinically simulated scenario contributes to the development of new and tougher materials, improving the clinical performance of restorations. The optimal in vitro environment for testing is unclear.

      Purpose

      The purpose of this in vitro study was to investigate the failure behavior of a leucite-reinforced glass-ceramic under compression loading and fatigue in different simulated oral environment conditions.

      Material and methods

      Fifty-three plate-shaped ceramic specimens were produced from computer-aided design and computer-aided manufactured (CAD-CAM) blocks and adhesively cemented onto a dentin analog substrate. For the monotonic test (n=23), a gradual compressive load (0.5 mm/min) was applied to the center of the specimens, immersed in 37ºC water, using a universal testing machine. The initial crack was detected with an acoustic system. The fatigue test was performed in a mechanical cycling machine (37ºC water, 2 Hz) using the boundary technique (n=30). Two lifetimes were evaluated (1×106 and 2×106 cycles). Failure analysis was performed using transillumination. Weibull distribution was used to evaluate compressive load data. A cumulative damage model with an inverse power law (IPL) lifetime-stress relationship was used to fit the fatigue data.

      Results

      A characteristic failure load of 1615 N and a Weibull modulus of 5 were obtained with the monotonic test. The estimated probability of failure (Pf) for 1×106 cycles at 100 N was 31%, at 150 N it was 55%, and at 200 N it was 75%. For 2×106 cycles, the Pf increased approximately 20% in comparison with the values predicted for 1×106 cycles, which was not significant. The most frequent failure mode was a radial crack from the intaglio surface. For fatigue, combined failure modes were also found (radial crack combined with cone crack or chipping).

      Conclusions

      Fatigue affects the fracture load and failure mode of leucite-reinforced glass-ceramic.
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      References

        • Sailer I.
        • Makarov N.A.
        • Thoma D.S.
        • Zwahlen M.
        • Pjetursson B.E.
        All-ceramic or metal-ceramic tooth-supported fixed dental prostheses (FDPs)? A systematic review of the survival and complication rates. Part I: Single crowns (SCs).
        Dent Mater. 2015; 31: 603-623
        • Scherrer S.S.
        • Quinn J.B.
        • Quinn G.D.
        • Kelly J.R.
        Failure analysis of ceramic clinical cases using qualitative fractography.
        Int J Prosthodont. 2006; 19: 185-192
        • Kelly J.R.
        Clinically relevant approach to failure testing of all-ceramic restorations.
        J Prosthet Dent. 1999; 81: 652-661
        • Scherrer S.S.
        • Quinn G.D.
        • Quinn J.B.
        Fractographic failure analysis of a Procera AllCeram crown using stereo and scanning electron microscopy.
        Dent Mater. 2008; 24: 1107-1113
        • Thompson J.Y.
        • Anusavice K.J.
        • Naman A.
        • Morris H.F.
        Fracture surface characterization of clinically failed all-ceramic crowns.
        J Dent Res. 1994; 73: 1824-1832
        • Scherrer S.S.
        • Quinn J.B.
        • Quinn G.D.
        • Wiskott H.W.
        Fractographic ceramic failure analysis using the replica technique.
        Dent Mater. 2007; 23: 1397-1404
        • Della Bona A.
        • Kelly J.R.
        The clinical success of all-ceramic restorations.
        J Am Dent Assoc. 2008; 139Suppl: 8S-13S
        • Quinn J.B.
        • Quinn G.D.
        • Kelly J.R.
        • Scherrer S.S.
        Fractographic analyses of three ceramic whole crown restoration failures.
        Dent Mater. 2005; 21: 920-929
        • Kelly J.R.
        Perspectives on strength.
        Dent Mater. 1995; 11: 103-110
        • Kelly J.R.
        • Benetti P.
        • Rungruanganunt P.
        • Bona A.D.
        The slippery slope: critical perspectives on in vitro research methodologies.
        Dent Mater. 2012; 28: 41-51
        • Kelly J.R.
        • Rungruanganunt P.
        • Hunter B.
        • Vailati F.
        Development of a clinically validated bulk failure test for ceramic crowns.
        J Prosthet Dent. 2010; 104: 228-238
        • Yi Y.J.
        • Kelly J.R.
        Effect of occlusal contact size on interfacial stresses and failure of a bonded ceramic: FEA and monotonic loading analyses.
        Dent Mater. 2008; 24: 403-409
        • Borba M.
        • Cesar P.F.
        • Griggs J.A.
        • Della Bona A.
        Step-stress analysis for predicting dental ceramic reliability.
        Dent Mater. 2013; 29: 913-918
        • Borba M.
        • de Araujo M.D.
        • Fukushima K.A.
        • Yoshimura H.N.
        • Cesar P.F.
        • Griggs J.A.
        • et al.
        Effect of the microstructure on the lifetime of dental ceramics.
        Dent Mater. 2011; 27: 710-721
        • Salazar Marocho S.M.
        • Studart A.R.
        • Bottino M.A.
        • Bona A.D.
        Mechanical strength and subcritical crack growth under wet cyclic loading of glass-infiltrated dental ceramics.
        Dent Mater. 2010; 26: 483-490
        • Wiskott H.W.
        • Nicholls J.I.
        • Belser U.C.
        Stress fatigue: basic principles and prosthodontic implications.
        Int J Prosthodont. 1995; 8: 105-116
        • Studart A.R.
        • Filser F.
        • Kocher P.
        • Gauckler L.J.
        In vitro lifetime of dental ceramics under cyclic loading in water.
        Biomaterials. 2007; 28: 2695-2705
        • Gonzaga C.C.
        • Cesar P.F.
        • Miranda Jr., W.G.
        • Yoshimura H.N.
        Slow crack growth and reliability of dental ceramics.
        Dent Mater. 2011; 27: 394-406
        • Lohbauer U.
        • Kramer N.
        • Petschelt A.
        • Frankenberger R.
        Correlation of in vitro fatigue data and in vivo clinical performance of a glassceramic material.
        Dent Mater. 2008; 24: 39-44
        • Özcan M.
        • Jonasch M.
        Effect of cyclic fatigue tests on aging and their translational implications for survival of all-ceramic tooth-borne single crowns and fixed dental prostheses.
        J Prosthodont. 2018; 27: 364-375
        • Silva N.R.
        • Thompson V.P.
        • Valverde G.B.
        • Coelho P.G.
        • Powers J.M.
        • Farah J.W.
        • et al.
        Comparative reliability analyses of zirconium oxide and lithium disilicate restorations in vitro and in vivo.
        J Am Dent Assoc. 2011; 142: 4S-9S
        • Corazza P.H.
        • Feitosa S.A.
        • Borges A.L.
        • Della Bona A.
        Influence of convergence angle of tooth preparation on the fracture resistance of Y-TZP-based all-ceramic restorations.
        Dent Mater. 2013; 29: 339-347
        • Mores R.T.
        • Borba M.
        • Corazza P.H.
        • Della Bona Á.
        • Benetti P.
        Influence of surface finishing on fracture load and failure mode of glass ceramic crowns.
        J Prosthet Dent. 2017; 118: 511-516
        • Corazza P.H.
        • Duan Y.
        • Kimpara E.T.
        • Griggs J.A.
        • Della Bona A.
        Lifetime comparison of Y-TZP/porcelain crowns under different loading conditions.
        J Dent. 2015; 43: 450-457
        • Basso G.R.
        • Moraes R.R.
        • Borba M.
        • Duan Y.
        • Griggs J.A.
        • Della Bona A.
        Reliability and failure behavior of CAD-on fixed partial dentures.
        Dent Mater. 2016; 32: 624-630
        • Maennig W.
        Statistical planning and evaluation of fatigue tests. A survey of recent results.
        International Journal of Fracture. 1975; 11: 123-129
        • Belli R.
        • Geinzer E.
        • Muschweck A.
        • Petschelt A.
        • Lohbauer U.
        Mechanical fatigue degradation of ceramics versus resin composites for dental restorations.
        Dent Mater. 2014; 30: 424-432
        • Dixon W.J.
        • Mood A.M.
        A method for obtaining and analyzing sensitivity data.
        Journal of American Statistical Association. 1948; 43: 109-126
        • Rungruanganunt P.
        • Kelly J.R.
        Insights into “bonding” of all-ceramics influenced by cement, sandblasting and water storage time.
        Dent Mater. 2012; 28: 939-944
        • Yi Y.J.
        • Kelly J.R.
        Failure responses of a dental porcelain having three surface treatments under three stressing conditions.
        Dent Mater. 2011; 27: 1252-1258
        • May L.G.
        • Kelly J.R.
        • Bottino M.A.
        • Hill T.
        Effects of cement thickness and bonding on the failure loads of CAD/CAM ceramic crowns: multi-physics FEA modeling and monotonic testing.
        Dent Mater. 2012; 28: e99-e109
        • Ereifej N.
        • Silikas N.
        • Watts D.C.
        Initial versus final fracture of metal-free crowns, analyzed via acoustic emission.
        Dent Mater. 2008; 24: 1289-1295
        • Della Bona A.
        • Anusavice K.J.
        • DeHoff P.H.
        Weibull analysis and flexural strength of hot-pressed core and veneered ceramic structures.
        Dent Mater. 2003; 19: 662-669
        • Wagner W.C.
        • Chu T.M.
        Biaxial flexural strength and indentation fracture toughness of three new dental core ceramics.
        J Prosthet Dent. 1996; 76: 140-144
        • Yilmaz H.
        • Aydin C.
        • Gul B.E.
        Flexural strength and fracture toughness of dental core ceramics.
        J Prosthet Dent. 2007; 98: 120-128