Abstract
Aim: The purpose of this study was to compare the microhardness, diametral tensile strength, compressive strength and the rheological properties of self-adhesive versus conventional resin cements. Methods: Specimens of a conventional (RelyX ARC) and 3 self-adhesive (RelyX U200, Maxcem Elite, Bifix SE) types of resin cements were prepared. The Knoop test was used to assess the microhardness, using a Microhardness Tester FM 700. For the diametral tensile strength test, a tensile strength was applied at a speed of 0.6 mm/minute. A universal testing machine was used for the analysis of compressive strength and a thermo-controlled oscillating rheometer was used for the Rheology test. One-way ANOVA and Tukey’s test (α=0.05) were used for data analysis. Results: According to microhardness analysis, all the cements were statistically similar (p>0.05), except for Maxcem that presented lower hardness compared with the other cements in relation to the top surface (p<0.05). In the diametral tensile strength test, Relyx U200 and RelyX ARC cements were statistically similar (p>0.05), presented higher value when compared to the Maxcem and Bifix cements (p<0.05). The compressive strength of RelyX ARC and Maxcem Elite cements was statistically higher than RelyX U200 and Bifix cements (p<0.05). Regarding the rheology test, Maxcem Elite and RelyX ARC cements showed a high modulus of elasticity. Conclusions: The self-adhesive cements presented poorer mechanical properties than conventional resin cement. Chemical structure and types of monomers employed interfere directly in the mechanical properties of resin cements.
References
Espíndola-Castro LF, Brito OFF, Araújo LGA, Santos ILA, Monteiro GQDM. In vitro evaluation of physical and mechanical properties of light-curing resin cement: a comparative study. Eur J Dent. 2020;14(01):152-6. doi: 10.1055/s-0040-1705075.
Manso AP, Silva NRFA, Bonfante EA, Pegoraro TA, Dias RA, Carvalho RM. Cements and Adhesives for All-Ceramic Restorations. Dent Clin North Am. 2011;55(2):311-32. doi: 10.1016/j.cden.2011.01.011.
Watanabe H, Kazama R, Asai T, Kanaya F, Ishizaki H, Fukushima M, et al. Efficiency of dual-cured resin cement polymerization induced by high-intensity LED curing units through ceramic material. Oper Dent. 2015;40(2):153-62. doi: 10.2341/13-357-L.
Hofmann N, Papsthart G, Hugo B, Klaiber B. Comparison of photo-activation versus chemical or dual-curing of resin-based luting cements regarding flexural strength, modulus and surface hardness.J Oral Rehabil. 2001;28(11):1022-8. doi: 10.1111/j.1365-2842.2001.00809.x.
Souza G, Braga RR, Cesar PF, Lopes GC. Correlation between clinical performance and degree of conversion of resin cements: a literature review. J Appl Oral Sci. 2015;23(4):358-68. doi: 10.1590/1678-775720140524.
Guimaraes IR, Gómez FM, Goes MFG. Effect of Activation Mode on Flexural Strength and Elasticity Modulusof Dual Cure Resin Cements. Int J Dental Sc. 2016;18(1):61-71. doi: 10.15517/ijds.v0i0.23556.
Mendes M, França FMG, Basting RT, Turssi CP, do Amaral FLB. Long-term bond strength of fiber posts cement to dentin with self-adhesive or conventional resin cements. J Adhes Sci Technol. 2017;31(9):977-87. doi: 10.1080/01694243.2016.1238124.
Pereira SG, Fulgêncio R, Nunesa TG, Toledano M, Osorio R, Carvalho RC. Effect of curing protocol on the polymerization of dual-cured resin cements. Dent Mater. 2010; 26(7):710-8. doi: 10.1016/j.dental.2010.03.016.
Ferreira-Filho R, Ely C, Amaral R, Rodrigues J, Roulet JF, Cassoni A, et al. Effect of different adhesive systems used for immediate dentin sealing on bond strength of a self-adhesive resin cement to dentin. Oper Dent. 2018;43(4):391-7. doi: 10.2341/17-023-l.
Aguiar TR, André CB, Correr-Sobrinho L, Arrais CA, Ambrosano GM, Giannini M. Effect of storage times and mechanical load cycling on dentin bond strength of conventional and self-adhesive resin luting cements. J Prosthet Dent. 2014;111(5):404-10. doi: 10.1016/j.prosdent.2013.07.016.
Aguiar TR, de Oliveira M, Arrais CAG, Ambrosano GMB, Rueggeberg F, Giannini M. The effect of photopolymerization on the degree of conversion, polymerization kinetic, biaxial flexure strength, and modulus of self-adhesive resin cements. J Prosthet Dent. 2015;113(2):128-34. doi: 10.1016/j.prosdent.2014.09.011.
Ribeiro CMR, Lopes MWF, Farias ABL, Cabral BLAL, Guerra CMA. Cimentação em prótese: Procedimentos convencionais e adesivos. Int J Dent. 2007 Jun;6(2):58-62.
Heintze SD, Ilie N, Hickel R, Reis A, Loguercio A, Rousson V. Laboratory mechanical parameters of compositeresins and their relation to fractures and wear inclinical trials- A systematic review. Dent Mater. 2016;33(3):01-14. doi: 10.1016/j.dental.2016.11.013.
Ellakwaa A, Chob N, Leeb IB. The effect of resin matrix composition on the polymerization shrinkage and rheological properties of experimental dental composites. Dent Mater. 2007;23(10):1229-35. doi: 10.1016/j.dental.2006.11.004.
Mainardi C, Giorgi MC, Lima DA, de Marchi GM, Ambrosano GM, Paulillo LAM, et al. Effect of energy density and delay time on the degree of conversion and Knoop microhardness of a dual resin cement. J Investig Clin Dent. 2015;6(1):53-8. doi: 10.1111/jicd.12075.
Arraias CAG, Kasaz AC, Albino LGB, Rodrigues JA, Reis AF. Effect of curing mode on the hardness of dual-cured composite resin core build-up materials. Braz Oral Res. 2010; 24(2):245-9. doi: 10.1590/S1806-83242010000200019.
Fonseca RG, Santos JG, Adabo GL. Influence of activation modes on diametral tensile strength of dual-curing resin cements. Braz Oral Res. 2005;19(4):267-71. doi: 10.1590/S1806-83242005000400006.
Uctasli S, Hasanreisoglu U, Wilson HJ. The attenuation of radiation by porcelain and its effect on polymerization of resin cements. J Oral Rehabil. 1994;21(5):565-75. doi: 10.1111/j.1365-2842.1994.tb01171.x.
White SN, Yu Z. Compressive and diametral tensile strengths of current adhesive luting agents. J Prosthet Dent. 1993; 69(6):568-72. doi: 10.1016/0022-3913(93)90283-T.
Kim AR, Jeon YC, Jeong CM, Yun MJ, Choi JW, Kwon YH, et al. Effect of activation modes on the compressive strength, diametral tensile strength and microhardness of dual-cured self-adhesive resin cements. Dent Mater J. 2016;35(2):298-308. doi: 10.4012/dmj.2015-056.
Guedes LLS, Mattos ECG, Zanib IM, Prates LHM, Chain MC. [Mechanical properties evaluation of conventional and self-etching resin cements]. Rev Odontol UNESP. 2008;37(1):85-9. Portuguese.
Leprince J, Palin WM, Mullier T, Devaux J, Vreven J, Leloup G. Investigating filler morphology and mechanical properties of new low-shrinkage resin composite types. J Oral Rehabil. 2010;37(5):364-76. doi: 10.1111/j.1365-2842.2010.02066.x.
Habekost LV, Camacho GB, Demarco FF, Powers JM. Tensile bond strength and flexural modulus of resin cements-influence on the fracture resistance of teeth restored with ceramic inlays. Oper Dent. 2007;32(5):488-95. doi: 10.2341/06-140.
Aguiar TR, Di Francescantonio M, Bedran-Russo AK, Giannini M .Inorganic composition and filler particles morphology of conventional and self-adhesive resin cements by SEM/EDX. Microsc Res Tech. 2012;75(10):1348-52. doi: 10.1002/jemt.22073.
Hitz T, Stawarczyk B, Fischer J, HämmerleaIre CHF, Sailer I. Are self-adhesive resin cements a valid alternative to conventional resin cements? A laboratory study of the long-term bond strength. 2012;28(11):1183-90. doi: 10.1016/j.dental.2012.09.006.
Tavangar MSA, Jafarpur DB, Bagheri RC. Evaluation of compressive strength and sorption/solubility of four luting cements. J Dent Biomater. 2017 Jun;4(2):387-93.
Piwowarczyk A, Lauer HC. Mechanical properties of luting cements after water storage. Oper Dent. 2003 Sep-Oct;28(5):535-42.
Lee JH, Um CM, Lee IB. Rheological properties of resin composites according to variations in monomer and filler composition. Dent Mater. 2006;22(6):515-26. doi: 10.1016/j.dental.2005.05.008.
Galvão MNA, Brandt WC, Miranda ME, Vitti RP. [Compressive, flexural and diametral tensile strength of resin cements in different storage times]. J Oral Investig. 2018;7(2):58-68. doi: 10.18256/2238-510X.2018.v7i2.2777. Portuguese.
Cook WD, Standish PM. Polymerization kinetics of resin-based restorative materials. J Biomed Mater Res. 1983:17(2):275-82. doi: 10.1002/jbm.820170206.
Furuichi T, Takamizawa T, Tsujimoto A, Miyazaki M, Barkmeier WW, Latta MA. Mechanical properties and sliding-impact wear resistance of self-adhesive resin cements. Oper Dent. 2016;41(3): E83-92. doi: 10.2341/15-033-L.
Al-Ahdal K, Silikas N, Watts DC. Rheological properties of resin composites according to variations in composition and temperature. Dent Mater. 2014;30(5):517-24. doi: 10.1016/j.dental.2014.02.005.
Valentino TA, Borges GA, Borges LH, Vishal J, Martins LRM, Correr-Sobrinho L. Dual resin cement knoop hardness after diferent activation modes through dental ceramics. Braz Dent J. 2010; 21(2):104-10. doi: 10.1590/S0103-64402010000200003.
Costa LA, Carneiro KK, Tanaka A, Lima DM, Bauer J. Evaluation of pH, ultimate tensile strength and micro-shear bond strength of two self-adhesive resin cements. Braz Oral Res. 2014;28(1):1-7. doi: 10.1590/1807-3107BOR-2014.vol28.0055.
Mushashe AM, Gonzaga CG, Cunha LF, Furuse AY, Moro A, Correr GM. Effect of Enamel and Dentin Surface Treatment on the Self-Adhesive Resin Cement Bond Strength. Braz Dent J. 2016; 27(5):537-42. doi: 10.1590/0103-6440201600445.
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