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<\/figure>\n\n\n\nFurther studies are needed to test real-life efficacy in humans.<\/p>\n\n\n\n
Researchers conducted the study in a lab using concentrations of the mouthwash and the time it would take to contact tissues to replicate conditions found in the mouth, says senior author Daniel H. Fine, chair of the oral biology department at Rutgers University\u2019s School of Dental Medicine.<\/p>\n\n\n\n
The study found two other mouthwashes showed promise in potentially providing some protection in preventing viral transmission<\/a>: Betadine, which contains povidone iodine, and Peroxal, which contains hydrogen peroxide. However, only Listerine and Chlorhexidine disrupted the virus with little impact on skin cells inside the mouth that provide a protective barrier against the virus.<\/p>\n\n\n\n \u201cAs dentists, we\u2019re right there in a patient\u2019s face. We wanted to know if there\u2019s something that might lower the viral load.\u2019<\/em><\/strong><\/strong><\/p>\n\n\n\n \u201cBoth Povidone iodine and Peroxal caused significant skin cell death in our studies, while both Listerine and Chlorhexidine had minimal skin cell killing at concentrations that simulated what would be found in daily use,\u201d Fine says.<\/p>\n\n\n\n Researchers studied the efficacy of mouthwash potential for preventing viral transmission to better understand how dental providers can stay protected from aerosols that patients exhale.<\/p>\n\n\n\n \u201cAs dentists<\/a>, we\u2019re right there in a patient\u2019s face. We wanted to know if there\u2019s something that might lower the viral load,\u201d says coauthor Eileen Hoskin, an assistant professor at the School of Dental Medicine.<\/p>\n\n\n\n Fine cautions the public against relying on mouthwash as a way to slow the spread until it is proven in clinical trials on humans.<\/p>\n\n\n\n \u201cThe ultimate goal would be to determine whether rinsing two or three times a day with an antiseptic agent with active anti-viral activity would have the potential to reduce the ability to transmit the disease. But this needs to be investigated in a real-world situation,\u201d he says.<\/p>\n\n\n\n Previous research has shown various types of antiseptic mouthwashes<\/a> can disrupt the novel coronavirus and temporarily prevent transmission, but this was one of the first studies that examined antiseptic rinse concentrations, time of contact, and the skin-cell killing properties that simulated oral conditions.<\/p>\n\n\n\n A team of dental school scientists and virologist at the Public Health Research Institute conducted the study.<\/p>\n\n\n\n