12歲以上 Ages12+ 口腔清潔篇 ORAL HYGIENE TIPS
牙刷更換的時機 When to replace a toothbrush?
It's recommended to change a toothbrush every 6 to 8 weeks. If you can see the bristles splitting from the back of the toothbrush, it means the bristles are already too worn out and should be replaced. In addition, if the roots of the toothbrush have accumulated too much food debris, you should also consider changing a toothbrush. Make sure to select an age-appropriate toothbrush as children grow up. Parents should not share a toothbrush with children out of convenience.