Interdental brushes should be thrown out and replaced when they show signs of wear or damage, or after a certain period of use. Here are some specific guidelines:
- Visible Wear and Tear: If the bristles are bent, frayed, or no longer hold their shape, it's time to replace the brush.
- Wire Damage: If the wire core is bent or damaged, discard the brush to avoid injury or ineffective cleaning.
- Hygiene Concerns: To maintain proper oral hygiene, replace the brush regularly. For daily use, this might be every week or so, depending on the manufacturer's recommendations.
- After Illness: If you've been sick, it's a good idea to replace your interdental brush to prevent re-infection.
Regular replacement ensures that the brushes are effective in removing plaque and maintaining oral health.