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Mouthwash has emerged as a silver lining against the coronavirus, with one study finding it can kill the virus within 30 seconds of exposure.
Scientists at Cardiff University have found that the mouth containing at least 0.07% cetylpyridinium chloride (CPC) showed “promising signs” of reduced transmission of the virus, several British publications reported.
According to Sky News, preliminary results have not yet been peer reviewed.
The results precede a COVID-19 clinical trial in patients at University Hospital of Wales, BBC reported.
Dr Nick Claydon, a specialist periodontist, said mouthwashes could become an important part of people’s daily lives.
Dr Claydon, a specialist periodontist, said: “If these positive results are reflected in the Cardiff University clinical trial, CPC-based mouthwashes … could become an important addition to the routine of patients. people, with hand washing, physical distancing and wearing masks. now and in the future. “
While the study suggests that mouthwash may help kill the virus in saliva, “there is not enough evidence that it could be used as a treatment for coronavirus because it will not reach them. respiratory tract or lungs, “said BBC.
The results support another recent study which found that CPC-based mouthwashes are effective in “lowering the viral load.”
Lead author of the study, Dr Richard Stanton, said: “This study adds to the emerging literature that several commonly available mouthwashes designed to fight gum disease can also inactivate the SARS-CoV-2 coronavirus. (and other related coronaviruses) when tested. in the laboratory under conditions designed to mimic the oral / nasal cavity of a test tube.
“This study is not yet peer reviewed and published, which means it has not yet been reviewed by other scientists, as is the usual process with academic research. It has now been submitted for publication in a journal.
“People should continue to follow preventive measures taken by the UK government, including washing their hands frequently and maintaining social distancing.”
The source of the virus will remain
Other health professionals have cautioned against being overly optimistic, however, that mouthwash can kill a virus on contact but will do nothing to stop the source of the virus as it constantly replicates in the upper respiratory tract.
“It’s always in your nose, in the fluid in your vocal cords and in your pulmonary airways,” said Donald Milton, who studies virus transmission at the University of Maryland. CNN. “All of these and in particular the vocal cords and pulmonary airways are the main sources of the virus in the air.”
“Mouthwash or other disinfectants won’t do much to protect someone from inhaling the virus,” said Leana Wen, professor of health policy at the George Washington University School of Public Health. “Washing your mouth or nose will not prevent inhalation of the virus. But wearing a mask does, as does keeping a good physical distance.”
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