Do:
Wash your hands before and after brushing.
After brushing, rinse your toothbrush thoroughly with tap water to ensure the removal of toothpaste and debris, allow it to air-dry after each use, since the bacteria most harmful will die when exposed to oxygen.
Store the toothbrush in an upright position, so water drains from it and it dries faster.
Replace it every 3-4 months or sooner if the bristles appear worn or you've had a cold or flu to prevent possible reinfection. This recommendation of the American Dental Association is based on the expected wear of the toothbrush and its subsequent loss of mechanical effectiveness, not on its bacterial contamination.
Clean the cover or container often to kill potentially harmful bacteria that could cause periodontal diseases, a serious bacterial infection that destroys the attachment fibers and supporting bone that holds teeth in the mouth.
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