12 children received fiber reinforced composite (FRC) space maintainer without silver nanoparticle.

12 children received fiber reinforced composite (FRC) space maintainers modified with silver nanoparticles.

Bonding of fiber reinforced with composite resin on primary second molar and primary canine under rubber dam isolation

Streptococcus mutants : One loop (1/1000th ml of sample) was inoculated on the Mitis Salivarius (MSA)* agar with 0.2 U/ml bacitracin and sucrose (15% w/v) bacitracin. The plates were incubated aerobically ( 5% CO2) at 37°C for 48 h.(10) For determination of S. mutans count: After 48 h , colony characteristics were studied and the number of colony forming units of SM (CFU/ml) in saliva was determined manually .

Lactobacilli : One loop (1/1000th ml of sample) was inoculated on the Rogosa **SL agar plate. The plates were incubated aerobically ( 5% CO2) at 37°C for 48 h.(11) For determination of lactobacilli count: After 48 h , colony characteristics were studied and the number of colony forming units of lactobacilli (CFU/ml) in saliva was determined manually