Important information on sports injuries, for adults and kids ready to hit the field, golf course or the courts –
from Dear Doctor, it includes:
Immediate – Within 5 minutes – a tooth completely knocked out
Urgent – Within 6 Hours – tooth is still in the mouth, but has been moved
Less Urgent – Within 12 Hours – teeth are broken or chipped
See : https://www.deardoctor.com/articles/sports-injuries-and-dentistry/index.php
There is also a printable pocket guide:
https://www.deardoctor.com/dental-injuries/dental-injuries-guide1.pdf