Effect of Fluorohydroxyapatite on Biological and Physical Properties of MTA Angelus

Table 1

Mean optical density (indicative of cell viability) in the three cement groups in freshly mixed form and at 1 and 7 days after setting (n = 3).

Time	Groups	Mean	Std. deviation	value
	Control	0.164	0.006	0.000
Fresh	MTA	0.153	0.005
	MTA-10% FHA	0.139	0.004
	MTA-15% FHA	0.135	0.001
Day 1	MTA	0.184	0.007	0.785
	MTA-10% FHA	0.185	0.006
	MTA-15% FHA	0.181	0.004
Day 7	MTA	0.175	0.004	0.479
	MTA-10% FHA	0.172	0.002
	MTA-15% FHA	0.172	0.004