The Christian Science Monitor (11/21, Thompson) considered when the appropriate time is to replace eight common household items, including a toothbrush. The article reports that toothbrushes should be replaced every 3-4 months, adding that “according to the American Dental Association, this is more about the state of your bristles than anything else.”
Test Tube (11/22, Garcia-Vargas) also reports that the ADA recommends replacing toothbrushes often.
Patient education library includes information on various topics ranging from dental care to oral health problems.