Effect of sodium hypochlorite in the different concentrations on root canal dentin microhardness
DOI:
https://doi.org/10.33448/rsd-v12i13.43993Keywords:
Sodium hypochlorite; Root canal preparation; Dentin; Hardness.Abstract
Sodium hypochlorite is an endodontic irrigant that repair asepsis to the root canal system, eliminating pathogenic microorganisms and restoring tooth function by promoting increased dentin permeability.The Vickers hardness of dentin was compared in relation to the concentration of sodium hypochlorite. Five upper first molars with 3 roots were chosen. The mesiobuccal roots were immersed in 0.9% saline solution (control). The distobuccal roots were instrumented with 0.5% sodium hypochlorite and the palatine roots with 4.94% sodium hypochlorite. In the statistical analysis, tables and graphs were used to show the research results and the behavior of the data. Descriptive statistics such as mean (x̅), standard deviation (SD) and coefficient of variation (CV) were presented. If CV≤ 15%, the data is considered homogeneous, if 15% < CV < 30%, medium dispersion is considered, and if CV ≥ 30%, the data is considered heterogeneous. To test normality “Kolmogorov-Smirnov” test (K-S test) will be used. And, finally, as a statistical inference, to compare two samples (Groups), Student's "t" parametric test will be used, if the data are normal, otherwise, the non-parametric "Manny Whitney" test ("U Test") makes the comparisons. It is important to emphasize that all tests were calculated with a significance level of 5%, corresponding to a confidence level of 95% and the program used was Bioestat 5.0. They observed a smaller numerical variation in the mean Vickers hardness on the dentin surface of the samples from group III (4.94% sodium hypochlorite) in the middle and apical thirds in relation to the mean cervical third, an event that was verified in groups I (0.9% saline solution), however, in groups II (0.5% sodium hypochlorite) there was a greater numerical variation in the middle and apical thirds in relation to the cervical third. However, for group III (4.5% sodium hypochlorite) 94%) points to greater Vickers microhardness in the cervical third, while in the middle and apical thirds they found lower microhardness on the dentin surface.
References
Akbulut, M. B., Guneser, M. B., & Eldeniz, A. U. (2019). Effects of fruit vinegars on root dentin microhardness and roughness. J Conserv Dent. 22(1):97-101.
Alkmin, S. T., Pinto, C. A., Habitante, S. M., Zöllner, N. A., Medeiros, J. M. F., & Lage-Marques, J. L (2007). Concepção de um modelo experimental à base de resina fenólica utilizado em endodontia. In: 24ª Reunião Anual da Sociedade Brasileira de Pesquisa Odontológica; 2007; set; Atibaia. São Paulo: SBPqO.
Anusavice, K. J. (2005). Phillips materiais dentários. (11a ed.), Elsevier. 337,338.
Anusavice, K. J., Shen, C., Rawls, & H. R. (2013). Phillips’ Science of Dental Materials. (12a ed.) Elsevier.
Aslantas, E. E., Buzoglu, H. D., AltundAsar E., & Serper, A. (2014). Effect of EDTA, sodium hypochlorite, and chlorhexidine gluconate with or without surface modifiers on dentin microhardness. J Endod. 40(6):876-9.
Aydin, B., Pamir, T., Baltaci, A., Orman, M. N., & Turk, T. (2015). Effect of storage solutions on microhardness of crown enamel and dentin. Eur J Dent. 9(2):262-266.
Baldasso, F. E. R., Roleto, L., Silva, V. D. D., Morgental, R. D., & Kopper, P. M. P. (2017). Effect of final irrigation protocols on microhardness reduction and erosion of root canal dentin. Braz Oral Res. 15;31:e 40.
Bertoldo, C. E., Miranda, D. A., Souza-Júnior, E. J., Aguiar, F. B., Lima, D. A., Ferreira, R. L., & Claes, I. (2011). Surface hardness and color change of dental enamel exposed to cigarette smoke. Int J Den Clinics, 3(4): 1-4
Cai, C., Chen, X., Li, Y., & Jiang, Q. (2023). Advances in the Role of Sodium Hypochlorite Irrigant in Chemical Preparation of Root Canal Treatment. Biomed Res Int. 1:1-17.
Callister Jr, W. D., & Rethwisch, D. G. (2014). Materials Science and Engineering. (9a ed.) Wiley.
Claro, F. A. E. (2004). Avaliação do desempenho de limas endodônticas de níquel-titânio após tratamento de superfície. [Dissertação] Taubaté: Departamento de Engenharia Mecânica, Universidade de Taubaté.
Dineshkumar, M. K., Vinothkumar, T. S., Arathi, G., Shanthisree, P., & Kandaswamy, D. (2012). Effect of ethylene diamine tetra-acetic acid, MTAD™, and HEBP as a final rinse on the microhardness of root dentin. J Conserv Dent. 15(2):170-3.
Elfallah, H. M., & Swain, M. V. (2013). A review of the effect of vital teeth bleaching on the mechanical properties of tooth enamel. N Zealand Den J. 109(3), 87-96.
Elika, V., Kunam, D., Anumula, L., Chinni, S. K., & Govula, K. (2021). Comparative evaluation of Chloroquick with Triphala, sodium hypochlorite, and ethylenediaminetetraacetic acid on the microhardness of root canal dentin: An in vitro study. J Clin Transl Res. 21;7(1):72-76
Garcia, A. J., Kuga, M. C., Palma-Dibb, R. G., Só, M. V., Matsumoto, M. A., Faria, G., & Keine, K. C. (2013). Effect of sodium hypochlorite under several formulations on root canal dentin microhardness. J Investig Clin Dent. 4(4):229-32.
Ghisi, A. C., Kopper, P. M., Baldasso, F. E., Stürmer, C. P., Rossi-Fedele, G., Steier, L., Figueiredo, J. A., Morgental, R. D., & Vier-Pelisser, F. V. (2014). Effect of super-oxidized water, sodium hypochlorite and EDTA on dentin microhardness. Braz Dent J. 25(5):420-4.
Gómez-Delgado, M., Camps-Font, O., Luz, L., Sanz, D., & Mercade, M. (2023). Update on citric acid use in endodontic treatment: a systematic review. Odontology. 111(1):1-19. http://www.sidneymelo.com.br/Discipl/Material/dureza.pdf
Junqueira, L. C., Carneiro, J., (2004). Histologia Básica. (4a ed.), Guanabara Koogan.
Kulkarni, S., Mustafa, M., Ghatole, K., AlQahtani, A. R., I Asiri, F. Y., Alghomlas, Z. I., Alothman, T. A., & Alhajri, F. F. (2021). Evaluation of 2% Chlorhexidine and 2% Sodium Fluoride as Endodontic Irrigating Solutions on Root Dentine Microhardness: An In Vitro Study. Eur J Dent. 15(2):253-258.
Medeiros, J. M. F., Ferreira, G. S., Habitante, S. M., Von Dollinger, C. F. A., Rosa, L. C. L., & Haddad Filho, M. S. (2014). Análise da dureza vickers da superfície de dentes artificiais em resina poliéster. Rev Odontol Univ Cid São Paulo. 26(1):23-37.
Melo, S. Material para Produção Industrial.Ensaio de Dureza. 8° Período.
Mood, A. M., Graybill, F. A., & Boes, D. C. (1974). Introduction To The Theory Of Statistics, third edition, Singapore: McGraw-Hill International Editions.
Oliveira, L. D., Carvalho, C. A., Nunes, W., Valera, M. C., Camargo, C. H., & Jorge A. O. (2007). Effects of chlorhexidine and sodium hypochlorite on the microhardness of root canal dentin. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 104(4):125-8.
Pascon, F. (2008). Influência da irrigação endodontica sobre a microdureza, morfologia e rugosidade de dentes decíduos e permanentes [Tese]. Piracicaba, 75f. Departamento de Odontologia, Universidade Estadual de Campinas.
Saha, S. G., Sharma, V., Bharadwaj, A., Shrivastava, P., Saha, M. K., Dubey, S., Kala, S., & Gupta, S. (2017). Effectiveness of Various Endodontic Irrigants on the Micro-Hardness of the Root Canal Dentin: An in vitro Study. J Clin Diagn Res. 11(4):ZC01-ZC04.
Smith R. L., & Sandland, G. E, (1925). Apud: Crocoli, C. Dureza Vickers, http://www.ebah.com.br/content/ABAAAATbEAE/dureza-vickers.
Soprano, V. (2008). Estudo de parâmetros para ensaios de micro dureza em amálgama de prata, resina composta, dentina e esmalte bovinos.8 140p. Dissertação (Mestrado em Dentística) - Faculdade de Odontologia, Universidade de São Paulo.
Soria, G. S., Barbin, E. L., & Spanò, J. C. E. (2009). Avaliação da microdureza de dentes bovinos tratados endodonticamente com diferentes soluções de irrigações. In: XVIII Congresso de Iniciação Científica, XI Encontro de Pós-Graduação e I Mostra Científica da Universidade Federal de Pelotas, Pelotas.
Taneja, S., Kumari, M., & Anand, S. (2014). Effect of QMix, peracetic acid and ethylenediaminetetraacetic acid on calcium loss and microhardness of root dentine. J Conserv Dent. 17(2):155-8.
Ulusoy, Ö.İ., & Görgül, G. (2013). Effects of different irrigation solutions on root dentine microhardness, smear layer removal and erosion. Aust Endod J. 39(2):66-21.
Xavier, C. F. A., Cavalcanti, A. L., Montenegro, R. V., & Melo J. B. C. A. (2010). Avaliação in vitro da microdureza do esmalte dentário após exposição a bebidas isotônicas. Rev Pesq Bras Odontoped Clin Integr, 10(2):145-150.
Xu, H., Ye, Z., Zhang, A., Lin, F., Fu, J., & Fok, A. S. L. (2022). Effects of concentration of sodium hypochlorite as an endodontic irrigant on the mechanical and structural properties of root dentine: A laboratory study. Int Endod J. 55(10):1091-1102.
Zhang, K., Tay, F. R., Kim, Y. K., Mitchell, J. K., Kim, J. R., Carrilho, M., Pashley, D. H., & Ling J. Q. (2010). The effect of initial irrigation with two different sodium hypochlorite concentrations on the erosion of instrumented radicular dentin. Dent Mater. 26(6):514-23.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2023 Adalberto Fidalgo da Costa; Amanda Farage Frade Barros; Paulo Roberto Gromatzky; Luiz Carlos Laureano da Rosa; Rodrigo Casasanta França; João Marcelo Ferreira de Medeiros
This work is licensed under a Creative Commons Attribution 4.0 International License.
Authors who publish with this journal agree to the following terms:
1) Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
2) Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
3) Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work.