Table 2.

Mean ± S.D. of biofilm cells (biofilm mass), including those that are viable and nonviable (mean), remaining on the surface of the specimens after different pretreatments with extract: 50 mg (E50), 25 mg (E25), or 16 mg (E16), and PBS (CTRL/PBS) or 1% sodium hypochlorite (CTRL/NaOCl), for 10 minutes. The data were obtained by using the confocal laser scanning microscopy and BioImage software program. Six independent experiments were performed in triplicate (n = 18).

Groups	Biofilm mass (µm3)	(Viable + nonviable)
E50	4.263,03 ± 4.037,27	(4.231,74 + 31,29)
E25	31.408,34 ± 5.552,14	(28.825,29 + 2.583,05)
E16	35.448,57 ± 4.950,06	(34.063.22 + 1.385,35)
CTRL/PBS	95.488,84 ± 40.389,17	(94.060,39 + 1.428,45)
CTRL/NaOCl	489,36 ± 244,11	(386,17 + 103,19)