Professor Martin Addy of the University of Bristol says that toothpaste contains the same chemicals as antibacterial hand gel. This means that it can kill the coronavirus if it ends up in the mouth. As noted by The Daily Mail , the professor recommends brushing your teeth as often as possible to lower your viral load in your mouth.
The transmission of coronavirus between people occurs mainly through droplets of saliva that enter the environment due to coughing or sneezing. Professor Addy encourages brushing your teeth every time a person leaves the house to reduce the risk of transmitting infection to others. Regular use of mouthwash is also helpful.
Triclosan is an antibacterial agent that is commonly added to toothpastes to prevent plaque buildup. The antibacterial soap also contains triclosan. Meanwhile, this compound is considered controversial in terms of health safety. So, in the United States, it has been banned since 2018.
Addy advises paying attention to chlorhexidine products because of their antiviral effects. Researchers at Korea University in Seoul proved that SARS-CoV-2 coronavirus was suppressed within two hours of chlorhexidine treatment.