Influence of increment thickness on microhardness and bond strength in composite resins

Authors

DOI:

https://doi.org/10.33448/rsd-v10i9.17974

Keywords:

Composite resins; Hardness tests; Polymerization.

Abstract

The aim of this study was to evaluate the Knoop microhardness and the microtensile bond strength of a second-generation of bulk-fill (BF) and a nanohybrid composite resins (NH) in different thicknesses of increments. For this, ninety disks of composite resin were made for Knoop microhardness, being divided into six groups (n = 15). The Knoop microhardness obtained in each millimeter of the internal face. For microtensile bond strength, ninety restored in third molars were used, divided into six groups (n = 15). For Knoop microhardness, the Wilcoxon and Friedman test was used. For the microtensile bond strength were used the Two-way Anova test and Tukey's post-test (p <0.05). The NH resin showed higher Knoop micro hardness than BF and it was observed that hardness value decreases as increases the thickness of the resin. There was no significant difference in microtensile bond strength comparing NH and BF. However, there was a significant difference between G2 and G4 for the NH groups, with the highest and lowest bond strength values, respectively. Thus, the new generation of the bulk-fill composite resin provided lower microhardness values as the thickness of the increments increases in comparison with the nanohybrid composite resin. The microtensile bond strength does not appear to have been influenced by the type of resin, or the thickness of the increment.

References

Aggarwal, N., Jain, A., Gupta, H., Abrol, A., Singh, C., & Rapgay, T. (2019). The comparative evaluation of depth of cure of bulk-fill composites - An in vitro study. J Conserv Dent, 22(4), 371-375. doi:10.4103/jcd.Jcd_453_18

Alkhudhairy, F. I. (2017). The effect of curing intensity on mechanical properties of different bulk-fill composite resins. Clin Cosmet Investig Dent, 9, 1-6. doi:10.2147/ccide.S130085

Alzraikat, H., Burrow, M. F., Maghaireh, G. A., & Taha, N. A. (2018). Nanofilled Resin Composite Properties and Clinical Performance: A Review. Oper Dent, 43(4), E173-e190. doi:10.2341/17-208-t

Behery, H., El-Mowafy, O., El-Badrawy, W., Saleh, B., & Nabih, S. (2016). Cuspal Deflection of Premolars Restored with Bulk-Fill Composite Resins. J Esthet Restor Dent, 28(2), 122-130. doi:10.1111/jerd.12188

Briso, A. L., Gonçalves, R. S., Costa, F. B., Gallinari Mde, O., Cintra, L. T., & Santos, P. H. (2015). Demineralization and hydrogen peroxide penetration in teeth with incipient lesions. Braz Dent J, 26(2), 135-140. doi:10.1590/0103-6440201300225

Chesterman, J., Jowett, A., Gallacher, A., & Nixon, P. (2017). Bulk-fill resin-based composite restorative materials: a review. Br Dent J, 222(5), 337-344. doi:10.1038/sj.bdj.2017.214

de Araújo, C. S., Schein, M. T., Zanchi, C. H., Rodrigues, S. A., Jr., & Demarco, F. F. (2008). Composite resin microhardness: the influence of light curing method, composite shade, and depth of cure. J Contemp Dent Pract, 9(4), 43-50.

Fronza, B. M., Ayres, A., Pacheco, R. R., Rueggeberg, F. A., Dias, C., & Giannini, M. (2017). Characterization of Inorganic Filler Content, Mechanical Properties, and Light Transmission of Bulk-fill Resin Composites. Oper Dent, 42(4), 445-455. doi:10.2341/16-024-l

Gajewski, V. E., Pfeifer, C. S., Fróes-Salgado, N. R., Boaro, L. C., & Braga, R. R. (2012). Monomers used in resin composites: degree of conversion, mechanical properties and water sorption/solubility. Braz Dent J, 23(5), 508-514. doi:10.1590/s0103-64402012000500007

Garcia, D., Yaman, P., Dennison, J., & Neiva, G. (2014). Polymerization shrinkage and depth of cure of bulk fill flowable composite resins. Oper Dent, 39(4), 441-448. doi:10.2341/12-484-l

Gonçalves, F., Campos, L. M. P., Rodrigues-Júnior, E. C., Costa, F. V., Marques, P. A., Francci, C. E., & Boaro, L. C. C. (2018). A comparative study of bulk-fill composites: degree of conversion, post-gel shrinkage and cytotoxicity. Braz Oral Res, 32, e17. doi:10.1590/1807-3107bor-2018.vol32.0017

Kim, R. J., Kim, Y. J., Choi, N. S., & Lee, I. B. (2015). Polymerization shrinkage, modulus, and shrinkage stress related to tooth-restoration interfacial debonding in bulk-fill composites. J Dent, 43(4), 430-439. doi:10.1016/j.jdent.2015.02.002

Kumagai, R. Y., Zeidan, L. C., Rodrigues, J. A., Reis, A. F., & Roulet, J. F. (2015). Bond Strength of a Flowable Bulk-fill Resin Composite in Class II MOD Cavities. J Adhes Dent, 17(5), 427-432. doi:10.3290/j.jad.a35012

Lima, R. B. W., Troconis, C. C. M., Moreno, M. B. P., Murillo-Gómez, F., & De Goes, M. F. (2018). Depth of cure of bulk fill resin composites: A systematic review. J Esthet Restor Dent, 30(6), 492-501. doi:10.1111/jerd.12394

Mandava, J., Vegesna, D. P., Ravi, R., Boddeda, M. R., Uppalapati, L. V., & Ghazanfaruddin, M. D. (2017). Microtensile bond strength of bulk-fill restorative composites to dentin. J Clin Exp Dent, 9(8), e1023-e1028. doi:10.4317/jced.53965

Piemjai, M., Chantarawej, P., & Nakabayashi, N. (2020). Evaluation of Caries-Free Restorations Bonded with Various Adhesive Systems: In Vitro Study. Int J Dent, 2020, 5859835. doi:10.1155/2020/5859835

Price, R. B., Dérand, T., Sedarous, M., Andreou, P., & Loney, R. W. (2000). Effect of distance on the power density from two light guides. J Esthet Dent, 12(6), 320-327. doi:10.1111/j.1708-8240.2000.tb00241.x

Sahadi, B. O., Price, R. B., André, C. B., Sebold, M., Bermejo, G. N., Palma-Dibb, R. G., & Giannini, M. (2018). Multiple-peak and single-peak dental curing lights comparison on the wear resistance of bulk-fill composites. Braz Oral Res, 32, e122. doi:10.1590/1807-3107bor-2018.vol32.0122

Tauböck, T. T., Tarle, Z., Marovic, D., & Attin, T. (2015). Pre-heating of high-viscosity bulk-fill resin composites: effects on shrinkage force and monomer conversion. J Dent, 43(11), 1358-1364. doi:10.1016/j.jdent.2015.07.014

Warangkulkasemkit, S., & Pumpaluk, P. (2019). Comparison of physical properties of three commercial composite core build-up materials. Dent Mater J, 38(2), 177-181. doi:10.4012/dmj.2018-038

Yap, A. U., Eweis, A. H., & Yahya, N. A. (2020). Dynamic Viscoelastic Characterization of Bulk-fill Resin-based Composites and Their Conventional Counterparts. Oper Dent, 45(2), 173-182. doi:10.2341/19-005-l

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Published

27/07/2021

How to Cite

HOSHINO, I. A. E.; BACHEGA, M. de O.; SANTOS, P. H. dos .; BRISO, A. L. .; ANCHIETA , R. B. . Influence of increment thickness on microhardness and bond strength in composite resins . Research, Society and Development, [S. l.], v. 10, n. 9, p. e32810917974, 2021. DOI: 10.33448/rsd-v10i9.17974. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/17974. Acesso em: 20 sep. 2021.

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Section

Health Sciences