回复：我以前有类似问题，现在完全消失。方法非常简单，请参看以前的帖子（见 link：）

Thank you for the link.  I also use 冲水清牙器 after each meal. (not every time but most of the time). I have tried my best to take care of my teeth, however, still have more cavities. I have measured the PH of my mouth and it is not acidic. Now my son will have brace but orthodontist suggests "interproxmal reduction" which means they will trim very thin layer of the teeth in order to get enough space. That makes me very worried since I am afraid it will damage the tooth  enamel. I don't want him having straight teeth but will have cavity in the future easily. Already paid the deposit for his treatment but still think about to cancel the treatment.

所有跟帖： 

• 个人经验，对我而言 waterpic 不是主要因素，不用牙膏才是关键。其原因那篇 -欲千北- ♂ (23 bytes) () 01/21/2014 postreply 09:50:12

• 回复：个人经验，对我而言 waterpic 不是主要因素，不用牙膏才是关键。其原因那篇 -kathyzh- ♀ (156 bytes) () 01/21/2014 postreply 11:46:23

• 只要早晚都刷，不会变黄。请选用软牙刷，水温高一些，并不时含水在口里。 -欲千北- ♂ (0 bytes) () 01/21/2014 postreply 12:14:19