Table 1. Means and standard deviations of the facture resistance of samples at two evaluation periods .

	Evaluation Period		P-value
Group	2 weeks	12 weeks
MTA	106.1±37.3	156.1±19.1	P<0.05
Portland	97.1±29.4	94.2±20.2	P>0.05
Saline	98.1±31.8	82.8±12.2	P>0.05

P>0.05 (within groups).