The number of bacteria in saliva samples was determined by, Ask an Expert

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Q. The number of bacteria in saliva samples was determined by collecting the saliva, making serial dilutions, and inoculating nutrient agar through pour plate method. The plates were incubated aerobically for 48 hours at 37C.

Bacteria per ml Saliva

before Using after Using Mouthwash

Mouthwash 1 13.1 x 10^6 10.9 x 10^6
Mouthwash 2 11.7 x 10^6 14.2 x 10^5
Mouthwash 3 9.3 x 10^5 7.7 x 10^5

what could you conclude from these data? Did all bacteria present in each saliva sample grow?

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