“…2020 http://dx.doi.org/10.14393/BJ-v36n5a2020-50349 (CALIXTO, 2005;IPEK et al, 2005). In endodontics, factors such as cytotoxicity and resistance of microorganisms tend to replace the use of standard medications with those prepared from natural plants (KARKARE et al, 2015;DHARIWAL et al, 2016;FARIAS et al, 2016;TONEA et al, 2017). Among them, carvacrol (5isopropyl-2-methylphenol) -a monoterpene phenol present in the essential oils of numerous aromatic plants -has shown antimicrobial (KLEIN et al, 2013), antioxidant (BEENA et al, 2013), antinociceptive (MELO et al, 2012), and antiinflammatory effects (LANDA et al, 2009).…”