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:

http://www.acfdga.com/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。