Antibacterial Triclosan Accumulates in Toothbrush Bristles - Beyond Pesticides Daily News Blog
(Beyond Pesticides, January 26, 2018) Triclosan may be on its way out in soaps and disinfectants, but its presence on toothbrushes could stick around for a long time, according to research published in Environmental Science and Technology by a group of scientists from University of Massachusetts, Amherst (UMass Amherst). The Food and Drug Administration (FDA) banned the use of over the counter triclosan-containing soap in 2016, and late last year extended the ban to include health care and hospital settings, but the toxic antibacterial can still be found in toothpaste and other consumer products. Many may have have checked their toothpaste label and switched to a non-triclosan toothpaste after the recent news, but scientists say that exposure to this persistent chemical may continue through toothbrushes, if triclosan toothpaste was previously used. To test triclosan absorption while brushing, researchers purchased 22 different toothbrushes, each with different components, from bristles only, to those with polishing cups, gum protectors, or tongue cleaners. Different toothpastes, including six with and 15 without triclosan, were also used. A mixture used to imitate saliva was added to toothpaste and put into a vial that was then brushed with different toothbrushes over a 3 month period – the […]
