Fig. 6

Bacterial counts in different groups. (Group A: HA disinfectant; Group B: AgNP disinfectant; Group C: HA + AgNP disinfectant). Note (A) bacterial count on the high-speed handpiece; (B) bacterial count in the mouthwash; (C) bacterial count on the ultrasonic scaler; (D) bacterial count on the air-water syringe. * and # suggested a great difference with P < 0.05 to the HA group and AgNP group, respectively