. 2020 Aug 5;28:e20200269. doi: 10.1590/1678-7757-2020-0269

Table 2. Mean and standard deviation values of radiopacity, setting time, and flow. Different lowercase letters in each column indicate statistically significant differences between the tested materials.

Composition	Radiopacity (mm Al)	Setting time (min)		Flow
		Initial	Final	ISO 6876 (mm)	Linear lateral (mm)	Volumetric lateral (mm³) (max. 4 mm³)	Volumetric central cavity (mm³) (max. 2 mm³)
Grey-MTAFlow cement	4.94 ± 0.25^a	8.12 ± 0.37^a	49.00 ± 1.00^a	10.90 ± 0.20^a	6.70 ± 1.40^a	2.40 ± 0.40^a	1.10 ± 0.30^a
Grey-MTAFlow + 5% ZnO	6.87 ± 0.16^b	8.87 ± 0.12^a	52.25 ± 0.25^b	11.40 ± 0.20^b	6.30 ± 0.60^a	2.40 ± 0.20^a	0.90 ± 0.20^a
Experimental cement	6.00 ± 0.36^ab	19.17 ± 0.76^b	100.00 ± 2.00^c	16.60 ± 0.60^b	6.80 ± 0.90^a	1.70 ± 0.40^a	0.30 ± 0.20^b