Table 1.

The mean microleakage of four groups in two periods of time (μL/min/cm H₂O).

		7 days after obturation		3 months after obturation
Sub groups	Number	Mean	Std. Deviation	Mean	Std. Deviation
G1	20	0.0554	0.0069	0.0558	0.0092
G2	20	0.0562	0.0104	0.0576	0.012