ioTech International announced that testing has recently been completed at the Institute of Antiviral Research at Utah State University comparing the antiviral efficacy of 4 oral rinses. The testing compared 2 rinses recommended by the American Dental Association in their interim guidance against Covid-19 (1.5% hydrogen peroxide and 0.2% povidone iodine). A third oral rinse, which earned the American Dental Association Seal of Acceptance (0.12% chlorhexidine gluconate) and a molecular iodine oral rinse being developed by ioTech International were also tested. The in vitro testing was conducted at a Level 3 Biocontainment laboratory by university researchers.
Testing was conducted to determine both the cytotoxicity and antiviral efficacy of each of the 4 rinses. The only rinse to demonstrate complete effectiveness against the SARS CoV-2 virus was the molecular iodine oral rinse containing molecular iodine 100 ppm (parts per million). The molecular iodine rinse was completely effective within 30 seconds. The other 3 rinses were only partially effective, even after 60 seconds. Neither of the iodine rinses (molecular iodine nor povidone iodine) were cytotoxic in the testing. Both the hydrogen peroxide and the chlorhexidine gluconate rinses demonstrated toxicity.