I was told that if I get my wisdom teeth removed there is a chance of nerve damage. What is nerve damage?

It is true that there is a risk of damage to the nerve that provides sensory information to the lower part of the face, lips and tongue. For most patients, this risk is very small. The loss of sensory information can have an impact on one's ability to eat, drink, shave, kiss or play a musical instrument. There are three types of nerve damage. The first is Neuropraxia, or temporary interruption with full recovery in 4-6 weeks. Axonotmesis is more permanent with decreased sensation of feeling. Neurotmesis is a physical separation of the nerve with complete and permanent loss of sensory feeling. Because of the nerve damage risk, removal of wisdom teeth should be done only when impaction is a big concern.