Cytotoxicity and Antibacterial Activity of Mineral Trioxide Aggregate Cement with Radiopacity Introduced by ZrO₂

Table 4

Impact of powder/liquid proportions and CaCl₂ concentration on the setting time, compressive strength, and kneading capacity of the cements, when compared with the reference cement.

Symbol of the sintered powder	Powder/liquid proportion (g/ml)	Type of liquid	Final setting time (min)	Compressive strength (MPa)	Remarks on kneading
B	3.6/1	15% wt. CaCl2	27	136.8 ± 9.3
		10% wt. CaCl2	60	125.0 ± 12.1
	3.0/1	15% wt. CaCl2	48	94.0 ± 6.8
		10% wt. CaCl2	>60	86.2 ± 5.6

– very easy to knead.