Don't worry.The lower tooth is supplied by a nerve
on each side called the mandibular nerve that supplies the tooth and the lower lip and chin on each side.There has been some trauma to the mandibular nerve that supplied the teeth , tongue, and lip on that side. This can range from a tingling
to total numbness
of these areas. Healing of nerve tissue is a slow process but in almost all cases comes back. It can take from a few days to few months. Tingling is a good sign and the damage is not as severe as total numbness.Waiting, at this time, is your only recourse. There are surgical procedures to reattach the nerve if injured, but with your dentist
the only one who might know the extent of injury
,I would suggest that you wait and see if the numbness does resolve.Be patient and time should take care of the problem. Good luck.