Rats using the special mouthwash had a different mix of mouth bacteria compared to rats using regular mouthwash, showing that the type of mouthwash affects the overall bacterial community in the mouth.

Rats using regular antibacterial mouthwash had fewer types of bacteria in their mouths compared to rats using the special nitrate mouthwash, showing how antibacterial products might reduce microbial diversity.

Rats using the special mouthwash had more good bacteria in their mouths that help convert nitrate to nitric oxide, compared to rats using regular mouthwash.

In rats, higher levels of certain mouth bacteria were linked to lower blood pressure, showing how the mouth's bacteria might help control blood pressure.

Rats using the special mouthwash had better antioxidant protection in their blood compared to rats using regular mouthwash, which might help protect against oxidative stress.

The special mouthwash made rats' saliva have 5.7 times more nitrate and 6.3 times more nitrite than regular mouthwash, which helps the body's natural blood pressure regulation system.