Nerve damage caused by tooth extraction can usually be recovered if the nerve is only touched and not broken; if the nerve is pulled or broken, recovery is unlikely. 1. Nerve is not broken: if the nerve is not broken during tooth extraction, it can be restored to normal in 2-3 months by taking oral nerve nutrient medication, or it may take half a year to recover. 2. Nerve fracture: rough action during tooth extraction leads to fracture of the nerve, the possibility of recovery is very small, may cause permanent numbness. It is best to choose to go to a regular hospital for tooth extraction and take surface tomography before the operation to analyze the growth and resistance of the teeth and reduce the damage to the nerves.