A study found women who flossed with Oral B Glide Floss has a higher level of a chemical called perfluorohexane sulfonic acid (PFHxS) that could be dangerous to their health. The toxic chemical found in this type of dental floss have been tied to cancer, heart disease according to the new study. Women … Continue reading There may be some danger in the use of dental floss due to a chemical called perfluorohexane sulfonic acid (PFHxS).