甩几个关于牙的链接

拔牙须知:

http://www.webmd.com/oral-health/guide/pulling-a-tooth-tooth-extraction

裂牙:

http://www.aae.org/patients/symptoms/cracked-teeth.aspx

裂牙:

5 Dental Procedures to Repair Your Cracked or Broken Tooth

为什么牙不能长回来:

http://sciencenordic.com/why-don%E2%80%99t-teeth-heal-themselves

If fractured bones can heal, why can’t teeth? from askscience

好了,可以重启电脑了。

 

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