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Table 2 Logarithm of bacterial count in liquid media after 3, 15, and 30 days

From: Evaluation of the antibacterial activity of a conventional orthodontic composite containing silver/hydroxyapatite nanoparticles

Bacterial type Incubation time (day) Percentage of Ag/HA nanoparticles
   0 % 1 % 5 % 10 %
Streptococcus mutans log 0 8.371 ± 0.027    
3   8.281 ± 0.202 8.184 ± 0.036 7.885 ± 0.073
15   8.312 ± 0.010 8.241 ± 0.027 8.041 ± 0.033
30   8.334 ± 0.029 8.268 ± 0.014 8.150 ± 0.020
Streptococcus sanguinis log 0 8.346 ± 0.049    
3   8.233 ± 0.031 8.115 ± 0.014 7.777 ± 0.073
15   8.254 ± 0.038 8.209 ± 0.020 8.096 ± 0.029
30   8.300 ± 0.014 8.278 ± 0.020 8.187 ± 0.031
Lactobacillus acidophilus log 0 8.295 ± 0.035    
3   8.248 ± 0.036 8.160 ± 0.032 7.996 ± 0.008
15   8.271 ± 0.027 8.228 ± 0.009 8.112 ± 0.053
30   8.285 ± 0.017 8.270 ± 0.011 8.228 ± 0.021