The ADA recommends replacing your toothbrush every 3 to 4 months or sooner if the bristles get worn. Perhaps add a calendar alert either electronically or on your wall calendar and replace the whole family's brushes at the same time.
1) Don't share toothbrushes. Sharing a toothbrush results in exchange of body fluids and bacteria placing both parties at risk of infection.
2) Rinse toothbrushes with tap water after brushing. This will remove any remaining toothpaste and debris.
3) Story the brush in an upright position. This assists with proper dry-time and gets the brush out of standing water.
4) Keep brushes apart. If you do store brushes together, try to keep the bristles from touching to reduce contamination.
5) Do not store in closed containers. Keeping your toothbrush covered just aids the bacteria to have the perfect environment.
Not on the list, but a bonus recommendation from us. In the restroom, close the lid when flushing as bacteria can spray up to ten inches above the lid and too close to your beloved toothbrush.
Dr. Randy Feldman, Chief Smile Officer also suggests "If you have plenty of room in the bathroom to use two different toothbrushes. You can get two different colors and use one before noon and the other in the evening, this way you allow time for the bristles to dry out our before being used again and alternating two toothbrushes increases the overall longevity significantly!"
Be sure to share these tips with friends and family, and SMILE.