Investigation of Fracture Resistance of Zirconia Restorations After Different Surface Treatments

Objective: The purpose of this study was to investigate the effects of the different surface treatments on fracture strength of the zirconia-based ceramic restorations. Methods: Each of 120 dental implant abutments and analogs were used in the present study. Zirconia core materials were manufactured on dental implants by using CAD/CAM device and they were randomly divided into 6 groups (n=20) according to surface pretreatments; control group (Group C), airborne-particle abrasion (Group AA), silica-coating (Group SC), Nd:YAG laser (Group N), bur-cut from cervical region (Group BC), and bur-cut on the functional tubercule (Group BT). Cementation was succeeded with two different types of cements including a dual-cure resin-cement and a glass ionomer cement. The obtained data were evaluated statistically using one-way ANOVA and Tukey tests (p=0.05). Results: No statistically significant difference was found between the groups (p>0.05). Similarly, no statistically significant difference was found between the resin cement and glass ionomer groups with respect to fracture strength values (p>0.05). Conclusion: Within the limitations of the present study, surface treatments and cement have no effect on the flexural strength of zirconia ceramic crowns.

Keywords:

dental lasers, fracture strenght test, surface treatments CAD/CAM, dental implants,

PDF

___

1. Alayad AS. Effect of Zirconia Core Thickness and Veneer Firing Cycle on the Biaxial Flexural Strength of Veneering Ceramic. J Prosthodont. 2020;29(1):26-33.
2. Hamza TA, Sherif RM. Fracture Resistance of Monolithic Glass-Ceramics Versus Bilayered Zirconia-Based Restorations. J Prosthodont. 2019;28(1):e259-e264.
3. Al-Wahadni A, Shahin A, Kurtz KS. Veneered zirconia-based restorations fracture resistance analysis.J Prosthodont. 2018;27(7):651-658.
4. Turk AG, Ulusoy M, Yuce M, Akin H. Effect of different veneering techniques on the fracture strength of metal and zirconia frameworks. J Adv Prosthodont. 2015;7(6):454-9
5. Pereira GKR, Fraga S, Montagner AF, Soares FZM, Kleverlaan CJ, Valandro LF. The effect of grinding on the mechanical behavior of Y-TZP ceramics: A systematic review and meta-analyses. J Mech Behav Biomed Mater. 2016;63:417-442.
6. Song JY, Park SW, Lee K, Yun KD, Lim HP. Fracture strength and microstructure of Y-TZP zirconia after different surface treatments. J Prosthet Dent. 2013 Oct;110(4):274-80.
7. Kim SY, Choi JW, Ju SW, Ahn JS, Yoon MJ, Huh JB. Fracture Strength After Fatigue Loading of Lithium Disilicate Pressed Zirconia Crowns. Int J Prosthodont. 2016 Jul-Aug;29(4):369-71.
8. Sailer I, Fäher A, Filser F, Gauckler L, Lüthy H, Hämmerle CH. Five-year clinical results of zirconia frameworks for posterior fixed partial dentures. Int J Prosthodont 2007;20:383-8.
9. Sailer I, Féher A, Filser F, Lüthy H, Gauckler LJ, Scharer P, et al. Prospective clinical study of zirconia posterior fixed partial dentures: 3-year follow-up. Quintessence Int 2006;37:685-93.
10. Akın H, Ozkurt Z, Kırmalı O, Kazazoglu E, Ozdemir AK. Shear bond strength of resin cement to zirconia ceramic after aluminum oxide sandblasting and various laser treatments. Photomed Laser Surg. 2011;29(12):797-802.
11. Khan AA, Al Kheraif AA, Jamaluddin S, Elsharawy M, Divakar DD. Recent Trends in Surface Treatment Methods for Bonding Composite Cement to Zirconia: A Reveiw. J Adhes Dent. 2017;19(1):7-19.
12. Yun JY, Ha SR, Lee JB, Kim SH. Effect of sandblasting and various metal primers on the shear bond strength of resin cement to Y-TZP ceramic. Dent Mater 2010;26(7):650-8.
13. Ersu B, Yuzugullu B, Yazici AR, Canay S. Surface roughness and bond strengths of glass-infiltrated alumina-ceramics prepared using various surface treatments. J Dent 2009;37:848–56.
14. Akin GE, Kaval ME, Turk T, Akin H. Surface roughness and bond strength of zirconia posts to a resin cement after various surface pretreatments. Photomed Laser Surg. 2015;33(5):246-51.
15. Kirmali O, Akin H, Kapdan A. Evaluation of the surface roughness of zirconia ceramics after different surface treatments. Acta Odontol Scand. 2014;72(6):432-9.
16. Akin H, Tugut F, Akin GE, Guney U, Mutaf B. Effect of Er:YAG laser application on the shear bond strength and microleakage between resin cements and Y-TZP ceramics.Lasers Med Sci. 2012;27(2):333-8.
17. Khan, Guazzato M, Albakry M, Quach L, Swain MV. Influence of grinding, sandblasting, polishing and heat treatment on the flexural strength of a glass-infiltrated alumina-reinforced dental ceramic. Biomaterials 2004; 25: 2153-2160.
18. Amaral M, Valandro LF, Bottino MA, Souza RO. Low-temperature degradation of a Y-TZP ceramic after surface treatments. J Biomed Mater Res B ApplBiomater, 2013;101(8):1387-1392.
19. Pereira GKR, Amaral M, Cesar PF, Bottino MC, Kleverlaan CJ, Valandro LF. Effect of low temperature aging on the mechanical behavior of ground Y-TZP. J MechBehav Biomed Mater,2015a;45:183-192.
20. Ramos GF, Pereira GKR, Amaral M, Valandro LF, Bottino MA.Effect of grinding and heat treatment on the mechanical behavior of zirconia ceramic.Braz Oral Res, 2016;30(e12):1-8.
21. Garvie RC, Nicholson PS. Phase analysis in zirconia systems. J Am Ceram Soc, 1972;55(6):303-305.
22. Kosmac T, Oblak C, Jevnikar P, Funduk N, Marion L. Strength and reliability of surface treated YTZP dental ceramics. J Biomed Mater Res, 2000;53(4):304-313.
23. Kosmac T, Oblak C, Jevnikar P, Funduk N, Marion L.The effect of surface grinding and sandblasting on flexural strength and reliability of Y-TZP zirconia ceramic. Dent Mater, 1999;15(6):426-33.
24. Kosmac T, Oblak C, Marion L.The effects of dental grinding and sandblasting on ageing and fatigue behavior of dental zirconia (Y-TZP) ceramics. J Eur Ceram Soc, 2008;28(5):1085-90.
25. Kosmac T, Dakskobler A. The strength and hydrothermal stability of Y-TZP ceramics for dental applications.Int J Appl Ceram Technol, 2007;4(2):164-74.
26. Curtis AR, Wright AJ, Fleming GJP. The influence of surface modification techniques on the performance of a Y-TZP dental ceramic. J Dent, 2006;34(3):195-206.
27. Iseri U, Ozkurt Z, Yalniz A, Kazazoglu E. Comparison of different grinding procedures on the flexural strength of zirconia. J Prosthet Dent, 2012;107(5):309-15.
28. Jian YT, Tang TY, Swain MV, Wang XD, Zhao K. Effect of core ceramic grinding on fracture behaviour of bilayered zirconia veneering ceramic systems under two loading schemes. Dent Mater. 2016;32(12):1453-1463.
29. Ozcan M, Melo RM, Souza RO, Machado JP, Felipe Valandro L, Botttino MA. Effect of air-particle abrasion protocols on the biaxial flexural strength, surface charecteristics and phase transformation of zirconia after cyclic loading. J Mech Behav Biomed Mater 2013;20:19-28.
30. Bankoğlu Güngör M, Yılmaz H, Karakoca Nemli S, Turhan Bal B, Aydın C. Effect of surface treatments on the biaxial flexural strength, phase transformation, and surface roughness of bilayered porcelain/zirconia dental ceramics. J Prosthet Dent. 2015;113(6):585-95.
31. Kurtulmus-Yilmaz S, Aktore H. Effect of the application of surface treatments before and after sintering on the flexural strength, phase transformation and surface topography of zirconia. J Dent. 2018;72:29-38.
32. Lawson NC, Jurado CA, Huang CT, Morris GP, Burgess JO, Liu PR, Kinderknecht KE, Lin CP, Givan DA. Effect of Surface Treatment and Cement on Fracture Load of Traditional Zirconia (3Y), Translucent Zirconia (5Y), and Lithium Disilicate Crowns. J Prosthodont. 2019;28(6):659-665.