I work in the dental field and have not heard of local anesthetics causing any type of neuropathy. The most common type of local anesthetic used now is called Septocaine. But, some people can get a rare numbness from oral surgery due to damaged nerves during the surgery. Most cases take 3-12 months before the nerves heal back to normal.

Now, general anesthesia is different. I had an epidural and spinal block 5 years ago for me c-section and I have been sick ever since then. Body pains, fatigue, headaches. I know that it was the anesthesia that caused it. After my surgery, I was shaking so bad from the anesthesia I couldn't hold my son for the first 3 hours of his life. But of course Dr.'s never think the two could be related. Now my pain Dr. wants me to consider Ketamine infusions. I'm not sure that I want to do that considering the bad reaction to the anesthesia last time I had it!