When to ditch the toothbrush
Your toothbrush is a nest for more than 10 million germs and bacteria. It is a breeding ground for various microorganisms. However, before you ditch your toothbrush, you should know that these tiny microorganisms aren’t damaging to your health, as long as you give your toothbrush some time to dry after each usage.
In sickness and in health, toothbrushes should be replaced every three to four months (or sooner, if the bristles are badly frayed because they will no longer clean your teeth effectively.)
Because children often brush more rigorously than adults, they may need their toothbrushes replaced more often.
Plastic travel covers will probably help keep your toothbrush clean on the go, but ditch them when you’re home. Microorganisms are more likely to grow in a moist environment, so don’t cover or store your wet toothbrush in a closed container.
The best way to care for your toothbrush is to shake it vigorously under running water after brushing. Make sure all toothpaste and food particles are removed from the brush. Then, place it upright in a toothbrush holder—and make sure it does not touch other toothbrushes.
So, how often should you change your toothbrush?
Get into the habit of buying new toothbrushes for everyone in the family several times per year. How often you change your toothbrush depends on several factors, but it’s best to always have a new, fresh toothbrush waiting in the bathroom cabinet for each family member.