If you wish to pursue a case, get copies of all your medical records and contact an experienced medical malpractice lawyer as soon as possible. I'm not familiar with New Jersey law, however, most jurisdictions require an expert affidavit in order to pursue a case for professional negligence. Meaning, you would need the affidavit of an oral surgeon that the medical care you received was below the acceptable standard of care and as a result caused your injury. Finding an expert to review a case, complete his/her review, and provide an affidavit can take some time, so you must hurry.
I've been told by expert oral surgeons that a broken jaw is considered an acceptable risk of the procedure in wisdom tooth removal. Whether that is universally held opinion of experts I don't know. When a bad outcome occurs that is a risk of the procedure, experts typically give the opinion that the standard of care was met and no medical malpractice occurred. However, it sounds like you are saying surgeon committed malpractice in his treatment of your broken jaw. The only way to know for sure is to have the case reviewed by an expert.
Medical cases are more expensive and time consuming than that typical personal injury cases, so most lawyers are very selective. Just because you get turned down by a lawyer, does not mean you don't have a good case. Sometimes you have to be persistent to find a lawyer willing to take on a med mal case. Also, most med mal attorneys will provide a free consultation if they are interested in your case, so call a lawyer today.