Table 1.

Composition of the tested sealers

Sealer	Manufacturer	Delivery/mixture	Composition
AH26	Dentsply DeTrey, Konstanz, Germany	Powder/resin Manual	Bismuth oxide, methenamine, silver, titanium oxide, epoxy resin
EndoSequence BC Sealer	Brasseler, Savannah, GA, USA	Premixed paste	Zirconium oxide, calcium silicates, calcium phosphate monobasic, calcium hydroxide, filler, thickening agents
EndoREZ	Ultradent, South Jordan, UT, USA	Paste/paste automix	Urethane dimethacrylate (UDMA), triethylene glycol dimethacrylate (TEGDMA), dimethyl propiothetin (DMPT), triethylene glycol dimethacrylate, tolylimino diethanol, zinc oxide, barium sulfate, pigments