Study Highlights Need To Rinse, Replace Toothbrush.

Women’s Health (5/5) reports that a study from researchers at the University of Manchester found that “the average toothbrush can contain 10 million or more bacteria,” including E.coli and Staph. The article reports that the study illuminates the importance of properly rinsing and storing one’s toothbrush, as well as replacing it at the proper interval. The article cites American Dental Association spokesperson and dentist Dr. Maria Lopez Howell, who explained that people should rinse their brush thoroughly after use, replace it when the bristles become frayed or after three months of use, and to store it in an upright position “in a spot that gets enough air for it to dry between brushings.”