Your toothbrush plays has an important role keeping your teeth clean twice a day. It is recommended by the American Dental Association (ADA) to replace your toothbrush every 3-4 months or sooner if the bristles become flared. If you are replacing it sooner than 3 months, you may be brushing too hard.
Some toothbrushes have indicators that fade after about 3 months of use. Don’t forget to change electric toothbrush heads and check your children's toothbrushes as they may chew on the bristles.
After a cold, flu, mouth infection or sore throat it is a good idea to change your toothbrush so you don’t re-infect yourself, since the bacteria or fungus can remain in the bristles.
Other tips for toothbrush care?
Don’t share your toothbrushes. It could result in exchange of body fluids and/or microorganisms between the users and place the individuals at increased risk of infection.
Thoroughly rinse your brush with tap water after brushing. This removes any remaining toothpaste and debris. Store the toothbrush in an upright position and allow the toothbrush to air-dry until used again.
Do not routinely cover toothbrushes or store them in closed containers. A moist environment will allow microorganisms to grown than the open air.
Rinse/soak your toothbrush with an antibacterial mouth rinse. This may prevent or decrease how rapidly bacteria build up on toothbrushes.
Here is another blog on how to brush your teeth.
Dr. Hayley Brahm