Table 1.

Endodontic sealers used in the study.

Sealer	Manufacturer	Composition
N2	Hager & Werken GmbH & Co. KG, Germany	Powder. Zinc oxide, zinc stearate, dehydrated zinc acetate, paraformaldehyde, titanium dioxide, basic bismuth subcarbonate, basic bismuth nitrate, yellow ferrous oxide  Liquid. Eugenol, rose oil, lavender oil, peanut oil
AH Plus	Dentsply De Trey GmbH, Germany	Epoxide Paste. Diepoxide, calcium tungstate, zirconium oxide, aerosil, pigment  Amine Paste. 1-Adamantane amine, N,N′-dibenzyl-5-oxa-nonandiamine-1,9, TCD-diamine, calcium tungstate, zirconium oxide, aerosil, silicone oil
Endomethasone N	Septodont Inc., France	Hydrocortisone acetate, thymol iodide, barium sulfate, zinc oxide, magnesium stearate
Apexit Plus	Ivoclar Vivadent AG, Switzerland	Base. Calcium hydroxide/calcium oxide, hydrated colophonium, fillers and other auxiliary materials (highly dispersed silicon dioxide, phosphoric acid alkyl ester)   Activator. Disalicylate, bismuth hydroxide/bismuth carbonate, fillers and other auxiliary materials (highly dispersed silicon dioxide, phosphoric acid alkyl ester)