“…Although several in vitro studies investigated these combined irrigants' biocompatibility, and antimicrobial and smear layer removal properties (Ballal et al, 2023; Ballal, Jain, et al, 2019; Johal et al, 2007; Torabinejad, Cho, et al, 2003; Torabinejad, Khademi, et al, 2003; Torabinejad, Shabahang, et al, 2003), very few clinical studies have been conducted with these irrigants (Ballal, Gandhi, et al, 2019; Malkhassian et al, 2009; Sapmaz et al, 2023; Torabinejad et al, 2005). Interestingly, clinical studies comparing combined irrigants did not report statistically significant differences in reducing bacterial counts (Ballal, Gandhi, et al, 2019; Ballal, Jain, et al, 2019; Malkhassian et al, 2009), unless Tandon et al (2022).…”