Fig. 1From: The effect of smear layer removal on E. faecalis leakage and bond strength of four resin-based root canal sealersPCR profiles of 16S rRNA gene from the bacterial samples in lower chamber. The lanes of ladder are 1 kb plus ladder; the lanes of 1-25 are samples. Neg, the lane of negative control; Pos, the lane of positive control of E. faecalis ATCC 29212 at the size of 137 bpBack to article page