Can I sue for dental malpractice even if I signed a waiver?

Asked in Old Bridge, NJ - 12 months

I had 4 wisdom teeth pulled and have since suffered parasthesia experiencing minimal to no feeling in my lower teeth, gums, lips and chin. I cannot eat solids as when I try to bite down my tongue gets a sharp stabbing pain and the pain in unbearable.My teeth and gums are in constant pain and even talking feels like little needles are stabbing me in the lips and chin and tongue. I work in a commission based industry and am afraid to go back to work as speaking all day is required and is incredibly painful. I am told this is nerve damage and may or may not be permanent and only time will tell. I am told it could take weeks to 6 months or more to being permanent. I signed a waiver prior to operating that parasthesia could be a risk. Did I sign away my right to sue?