The Journal of Advanced Prosthodontics

The Korean Academy of Prosthodonitics (대한치과보철학회)
권호 표지
DOI QR코드

DOI QR Code

The effect of different cooling rates and coping thicknesses on the failure load of zirconia-ceramic crowns after fatigue loading

  • Tang, Yu Lung (Nonsan Yonsei Suite Dental Clinic) ;
  • Kim, Jee-Hwan (Department of Prosthodontics, Yonsei University Dental Hospital, College of Dentistry, Yonsei University) ;
  • Shim, June-Sung (Department of Prosthodontics, Yonsei University Dental Hospital, College of Dentistry, Yonsei University) ;
  • Kim, Sunjai (Department of Prosthodontics, Gangnam Severance Dental Hospital, College of Dentistry, Yonsei University)
  • Received : 2016.07.14
  • Accepted : 2016.11.17
  • Published : 2017.06.30
Download PDF
⟨ Previous Next ⟩

Abstract

PURPOSE. The purpose of this study was to evaluate the influence of different coping thicknesses and veneer ceramic cooling rates on the failure load of zirconia-ceramic crowns. MATERIALS AND METHODS. Zirconia copings of two different thicknesses (0.5 mm or 1.5 mm; n=20 each) were fabricated from scanning 40 identical abutment models using a dental computer-aided design and computer-aided manufacturing system. Zirconia-ceramic crowns were completed by veneering feldspathic ceramics under different cooling rates (conventional or slow, n=20 each), resulting in 4 different groups (CONV05, SLOW05, CONV15, SLOW15; n=10 per group). Each crown was cemented on the abutment. 300,000 cycles of a 50-N load and thermocycling were applied on the crown, and then, a monotonic load was applied on each crown until failure. The mean failure loads were evaluated with two-way analysis of variance (P=.05). RESULTS. No cohesive or adhesive failure was observed after fatigue loading with thermocycling. Among the 4 groups, SLOW15 group (slow cooling and 1.5 mm chipping thickness) resulted in a significantly greater mean failure load than the other groups (P<.001). Coping fractures were only observed in SLOW15 group. CONCLUSION. The failure load of zirconia-ceramic crowns was significantly influenced by cooling rate as well as coping thickness. Under conventional cooling conditions, the mean failure load was not influenced by the coping thickness; however, under slow cooling conditions, the mean failure load was significantly influenced by the coping thickness.

Keywords

References

  1. Tinschert J, Schulze KA, Natt G, Latzke P, Heussen N, Spiekermann H. Clinical behavior of zirconia-based fixed partial dentures made of DC-Zirkon: 3-year results. Int J Prosthodont 2008;21:217-22.
  2. Schmitt J, Holst S, Wichmann M, Reich S, Gollner M, Hamel J. Zirconia posterior fixed partial dentures: a prospective clinical 3-year follow-up. Int J Prosthodont 2009;22:597-603.
  3. Pelaez J, Cogolludo PG, Serrano B, Serrano JF, Suarez MJ. A four-year prospective clinical evaluation of zirconia and metalceramic posterior fixed dental prostheses. Int J Prosthodont 2012;25:451-8.
  4. Cosgarea R, Gasparik C, Dudea D, Culic B, Dannewitz B, Sculean A. Peri-implant soft tissue colour around titanium and zirconia abutments: a prospective randomized controlled clinical study. Clin Oral Implants Res 2015;26:537-44. https://doi.org/10.1111/clr.12440
  5. Sax C, Hammerle CH, Sailer I. 10-year clinical outcomes of fixed dental prostheses with zirconia frameworks. Int J Comput Dent 2011;14:183-202.
  6. Burke FJ, Crisp RJ, Cowan AJ, Lamb J, Thompson O, Tulloch N. Five-year clinical evaluation of zirconia-based bridges in patients in UK general dental practices. J Dent 2013;41:992-9. https://doi.org/10.1016/j.jdent.2013.08.007
  7. Rinke S, Gersdorff N, Lange K, Roediger M. Prospective evaluation of zirconia posterior fixed partial dentures: 7-year clinical results. Int J Prosthodont 2013;26:164-71. https://doi.org/10.11607/ijp.3229
  8. Rojas-Vizcaya F. Full zirconia fixed detachable implant-re-tained restorations manufactured from monolithic zirconia: clinical report after two years in service. J Prosthodont 2011; 20:570-6. https://doi.org/10.1111/j.1532-849X.2011.00784.x
  9. Limmer B, Sanders AE, Reside G, Cooper LF. Complications and patient-centered outcomes with an implant-supported monolithic zirconia fixed dental prosthesis: 1 year results. J Prosthodont 2014;23:267-75. https://doi.org/10.1111/jopr.12110
  10. Aboushelib MN, Feilzer AJ, Kleverlaan CJ. Bridging the gap between clinical failure and laboratory fracture strength tests using a fractographic approach. Dent Mater 2009;25:383-91. https://doi.org/10.1016/j.dental.2008.09.001
  11. Saito A, Komine F, Blatz MB, Matsumura H. A comparison of bond strength of layered veneering porcelains to zirconia and metal. J Prosthet Dent 2010;104:247-57. https://doi.org/10.1016/S0022-3913(10)60133-3
  12. Tholey MJ, Swain MV, Thiel N. Thermal gradients and residual stresses in veneered Y-TZP frameworks. Dent Mater 2011;27:1102-10. https://doi.org/10.1016/j.dental.2011.08.001
  13. Bonfante EA, Rafferty B, Zavanelli RA, Silva NR, Rekow ED, Thompson VP, Coelho PG. Thermal/mechanical simulation and laboratory fatigue testing of an alternative yttria tetragonal zirconia polycrystal core-veneer all-ceramic layered crown design. Eur J Oral Sci 2010;118:202-9. https://doi.org/10.1111/j.1600-0722.2010.00724.x
  14. Silva NR, Bonfante EA, Rafferty BT, Zavanelli RA, Rekow ED, Thompson VP, Coelho PG. Modified Y-TZP core design improves all-ceramic crown reliability. J Dent Res 2011;90: 104-8. https://doi.org/10.1177/0022034510384617
  15. Aboushelib MN, Kleverlaan CJ, Feilzer AJ. Microtensile bond strength of different components of core veneered all-ceramic restorations. Part II: Zirconia veneering ceramics. Dent Mater 2006;22:857-63. https://doi.org/10.1016/j.dental.2005.11.014
  16. Aboushelib MN, Mirmohamadi H, Matinlinna JP, Kukk E, Ounsi HF, Salameh Z. Innovations in bonding to zirconiabased materials. Part II: Focusing on chemical interactions. Dent Mater 2009;25:989-93. https://doi.org/10.1016/j.dental.2009.02.011
  17. Swain MV. Unstable cracking (chipping) of veneering porcelain on all-ceramic dental crowns and fixed partial dentures. Acta Biomater 2009;5:1668-77. https://doi.org/10.1016/j.actbio.2008.12.016
  18. Guazzato M, Walton TR, Franklin W, Davis G, Bohl C, Klineberg I. Influence of thickness and cooling rate on development of spontaneous cracks in porcelain/zirconia structures. Aust Dent J 2010;55:306-10. https://doi.org/10.1111/j.1834-7819.2010.01239.x
  19. Mainjot AK, Schajer GS, Vanheusden AJ, Sadoun MJ. Influence of cooling rate on residual stress profile in veneering ceramic: measurement by hole-drilling. Dent Mater 2011;27:906-14. https://doi.org/10.1016/j.dental.2011.05.005
  20. Belli R, Frankenberger R, Appelt A, Schmitt J, Baratieri LN, Greil P, Lohbauer U. Thermal-induced residual stresses affect the lifetime of zirconia-veneer crowns. Dent Mater 2013;29: 181-90. https://doi.org/10.1016/j.dental.2012.11.015
  21. Belli R, Monteiro S Jr, Baratieri LN, Katte H, Petschelt A, Lohbauer U. A photoelastic assessment of residual stresses in zirconia-veneer crowns. J Dent Res 2012;91:316-20. https://doi.org/10.1177/0022034511435100
  22. Meira JB, Reis BR, Tanaka CB, Ballester RY, Cesar PF, Versluis A, Swain MV. Residual stresses in Y-TZP crowns due to changes in the thermal contraction coefficient of veneers. Dent Mater 2013;29:594-601. https://doi.org/10.1016/j.dental.2013.03.012
  23. Mainjot AK, Schajer GS, Vanheusden AJ, Sadoun MJ. Influence of zirconia framework thickness on residual stress profile in veneering ceramic: measurement by hole-drilling. Dent Mater 2012;28:378-84. https://doi.org/10.1016/j.dental.2011.11.009
  24. Mainjot AK, Schajer GS, Vanheusden AJ, Sadoun MJ. Influence of veneer thickness on residual stress profile in veneering ceramic: measurement by hole-drilling. Dent Mater 2012;28:160-7. https://doi.org/10.1016/j.dental.2011.11.008
  25. Rosentritt M, Behr M, Thaller C, Rudolph H, Feilzer A. Fracture performance of computer-aided manufactured zirconia and alloy crowns. Quintessence Int 2009;40:655-62.
  26. Alhasanyah A, Vaidyanathan TK, Flinton RJ. Effect of core thickness differences on post-fatigue indentation fracture resistance of veneered zirconia crowns. J Prosthodont 2013;22: 383-90. https://doi.org/10.1111/jopr.12016
  27. Larsson C, El Madhoun S, Wennerberg A, Vult von Steyern P. Fracture strength of yttria-stabilized tetragonal zirconia polycrystals crowns with different design: an in vitro study. Clin Oral Implants Res 2012;23:820-6. https://doi.org/10.1111/j.1600-0501.2011.02224.x
  28. Rosentritt M, Steiger D, Behr M, Handel G, Kolbeck C. Influence of substructure design and spacer settings on the in vitro performance of molar zirconia crowns. J Dent 2009;37: 978-83. https://doi.org/10.1016/j.jdent.2009.08.003
  29. Guess PC, Bonfante EA, Silva NR, Coelho PG, Thompson VP. Effect of core design and veneering technique on damage and reliability of Y-TZP-supported crowns. Dent Mater 2013; 29:307-16. https://doi.org/10.1016/j.dental.2012.11.012
  30. Sailer I, Gottnerb J, Kanelb S, Hammerle CH. Randomized controlled clinical trial of zirconia-ceramic and metal-ceramic posterior fixed dental prostheses: a 3-year follow-up. Int J Prosthodont 2009;22:553-60.
  31. Schwarz S, Schroder C, Hassel A, Bomicke W, Rammelsberg P. Survival and chipping of zirconia-based and metal-ceramic implant-supported single crowns. Clin Implant Dent Relat Res 2012;14:e119-25. https://doi.org/10.1111/j.1708-8208.2011.00388.x
  32. Rues S, Kroger E, Muller D, Schmitter M. Effect of firing protocols on cohesive failure of all-ceramic crowns. J Dent 2010;38:987-94. https://doi.org/10.1016/j.jdent.2010.08.014
  33. Rinke S, Schafer S, Lange K, Gersdorff N, Roediger M. Practice-based clinical evaluation of metal-ceramic and zirconia molar crowns: 3-year results. J Oral Rehabil 2013;40:228-37. https://doi.org/10.1111/joor.12018

Cited by

  1. Influence of various airborne-particle abrasion conditions on bonding between zirconia ceramics and an indirect composite resin material vol.122, pp.5, 2017, https://doi.org/10.1016/j.prosdent.2019.08.016
  2. Fracture resistance and marginal fit of the zirconia crowns with varied occlusal thickness vol.12, pp.5, 2017, https://doi.org/10.4047/jap.2020.12.5.283
  3. Extended glaze firings for porcelain-veneered zirconia: Effects on the mechanical and optical behavior vol.37, pp.7, 2017, https://doi.org/10.1016/j.dental.2021.03.009