It is a common myth that losing baby teeth due to tooth decay is insignificant because baby teeth fall out anyway.

这是常见的误区，认为宝宝因为蛀牙失去牙齿是无关紧要的，因为宝宝的乳牙总会在将来某一天脱落。

youdao

What did you dream about last night? Did your teeth fall out or did you fly?

你昨晚梦见了什么？牙掉了抑或是在飞翔？

youdao

When your teeth fall out in a dream, it could signify that you feel ill-equipped to break down the knowledge that you have available, that the way you break things down has changed.

当在梦中你的牙掉了，这可能意味着你并未充分准备好消化你所拥有的知识，或者你消化东西的方式发生了改变。

youdao

If you are removing it for prevention of tooth decay or periodontal disease such as gingivitis, which destroys the root and makes the teeth fall out then I believe it's best at night.

WSJ: How to Be a Better Flosser