Equisetum giganteum influences the ability of Candida albicans in forming biofilms over the denture acrylic resin surface

Figures & data

Figure 1. Antifungal activity of E. giganteum extracts against C. albicans. Mean ± S.D. of viable cells (Logarithm of colony forming units per cm²) remaining on the surface of resin specimens after different pretreatments with extract: 4–50 mg/mL, or PBS (CTRL/PBS) or 1% sodium hypochlorite (CTRL/NaOCl), for 10 min. Data were obtained from analysis of 12 specimens for each group. *p < 0.05 compared to the control (CTRL/PBS).

Table 1. Comparison of results from CV and CFU assays, and reduction of viable cells in relation to Control (CTRL/PBS), observed in biofilms remaining on the surface of the resin specimens after different pretreatments with extract: 4–50 mg/mL, or PBS (CTRL/PBS) or 1% sodium hypochlorite (CTRL/NaOCl), for 10 min.

Treatment (Groups)	Biofilm mass determinationCV Abs(570nm)/cm^2 ± SD	Log10 CFU/cm^2 Reduction(% in relation to CTRL/PBS)
E50	1.55 ± 1.11	1.71 (79)
E25	1.41 ± 0.39	1.94 (74)
E16	1.67 ± 0.42	1.82 (74.5)
E8	2.00 ± 0.70	2.38 (50)
E4	2.12 ± 0.86	2.17 (66)
CTRL/NaOCl	0.79 ± 0.58	0.37 (99.5)
CTRL/PBS	2.51 ± 0.60	2.73 (0)

Figure 2. Mean absorbance values per cm² obtained by CV assay on biofilms remaining on the surface of resin specimens after different pretreatments with extract: 4–50 mg/mL, or PBS (CTRL/PBS) or 1% sodium hypochlorite (CTRL/NaOCl), for 10 min. *p < 0.05 compared to the control (CTRL/PBS).