Fig. 9From: Effect of silver sulfadiazine on mature mixed bacterial biofilms on voice prosthesesEffects of SSD on the number of colonies (A) and the metabolic activity of the strains (B) in the patients’ mature mixed voice prosthesis biofilms. The experimental results are expressed as the mean ± SD. *P < 0.05 indicates a significant difference compared with the negative control groupBack to article page