That trusty tool for a dazzling smile? It turns out your toothbrush can become a breeding ground for germs, even if you keep your shower grout spotless and mold at bay.
No matter how clean you keep your home, bacteria thrive on toothbrushes. A common sink holder is prime real estate: handwashing splashes transfer germs directly to the bristles. Flushing the toilet without closing the lid? Aerosolized particles linger in the air and settle on surfaces, including your brush, according to Charles Gerba, PhD, professor of microbiology and environmental science at the University of Arizona College of Public Health. And if it hits the floor? Think shoes, feet, and worse.
Plastic caps on bristles? They trap moisture, preventing drying and fostering mildew growth. Crowded holders spread contamination too – that's how your child's cold becomes yours.
Replace it every three months, or sooner if bristles fray, to eliminate buildup and maintain effectiveness for optimal oral health.
Choose toothpaste wisely: Look for formulas with triclosan or copolymer, which outperform fluoride-only options against oral bacteria.
Avoid sharing: Don't lend your brush, even to overnight guests. Dental surgeon Ann Wei, DDS, in San Francisco, also advises against sharing toothpaste tubes. In families, apply paste carefully to prevent bristle contact with the opening.
Rinse bristles thoroughly after use. Soak in hydrogen peroxide or antibacterial mouthwash for extra disinfection.
Air-dry in an upright position: Store in a bathroom cabinet if possible, ensuring bristles don't touch others in shared holders.
You can't eliminate every germ, but these evidence-based steps from microbiology experts minimize risks for safer brushing.
