It is generally recommended to change your toothbrush every 3 to 4 months. However, you may need to replace it sooner if: Bristles are worn or frayed: Even if it's been less than three months, frayed bristles are less effective at cleaning teeth and gums. You’ve been sick: Replace your toothbrush after a cold, flu, or any illness to avoid reinfection. Bacteria build-up: If your toothbrush has been stored in a damp or unclean environment, it's good to replace it sooner. Children's toothbrushes: Kids often use more force while brushing, so their toothbrushes might wear out faster. To maintain good oral hygiene, pair a fresh toothbrush with proper brushing techniques and regular dental check-ups! call to 8237647413 for more info get the treatment from best dentist from Nashik Om Dental Clinic