Can the addition of surfactants to NaOCl irrigation impact on the percentage of voids of root canal filling?

Laise Pena Braga Monteiro; Marcella Yasmin Reis Guerreiro; Felipe Gonçalves Belladonna; Carolina Oliveira de Lima; Emmanuel João Nogueira Leal da Silva; Juliana Melo da Silva Brandão

doi:10.1111/aej.12829

Can the addition of surfactants to NaOCl irrigation impact on the percentage of voids of root canal filling?

Aust Endod J. 2024 Jan 19. doi: 10.1111/aej.12829. Online ahead of print.

Authors

Laise Pena Braga Monteiro¹, Marcella Yasmin Reis Guerreiro¹, Felipe Gonçalves Belladonna², Carolina Oliveira de Lima^{3

4}, Emmanuel João Nogueira Leal da Silva^{2

3

5}, Juliana Melo da Silva Brandão¹

Affiliations

¹ Department of Endodontics, Pará Federal University, Belém, Brazil.
² Department of Endodontics, Fluminense Federal University, Niterói, Brazil.
³ Department of Endodontics, Rio de Janeiro State University, Rio de Janeiro, Brazil.
⁴ Department of Endodontics, Juiz de Fora Federal University, Governador Valadares, Brazil.
⁵ Department of Endodontics, Grande Rio University, Duque de Caxias, Brazil.

PMID: 38243635
DOI: 10.1111/aej.12829

Abstract

This study evaluated the impact of canal irrigation using surfactants associated to NaOCl on the percentage of voids of root canal filling through micro-computed tomographic (micro-CT) analysis. 27 mandibular mesial roots with Vertucci type II canal configuration with isthmus were selected and scanned in a micro-CT device. The specimens were assigned to three groups (n = 9), according to the irrigation solution during instrumentation: 2.5% NaOCl without additives (control), 2.5% NaOCl with 0.1% Benzalkonium Chloride and 2.5% NaOCl with 0.1% Tween 80. After obturation, the specimens were rescanned, and the percentage of voids were calculated. Data were analysed using one-way ANOVA with a significance level of 5%. The percentage of voids were similar among the groups (p > 0.05). None of the specimens showed completely voids-free areas. The addition of surfactants to NaOCl irrigation did not improve the quality of root canal filling of mandibular mesial root canals.

Keywords: endodontics; micro-CT; root canal filling; sodium hypochlorite; superficial tension.