Dr. Gardiner graduated from Rutgers College in 1974 with a degree in Zoology, and he is a 1977 graduate of the University of Medicine and Dentistry of NJ with a DMD degree. He is a full-time general dentist in New Jersey and for over 35 years has served as an expert witness in reviewing dental malpractice lawsuits. He is on the faculty of the Rutgers School of Dental Medicine as an Assistant Clinical Professor and teaches clinical fixed prosthodontics. He has been awarded Fellowships in the Academy of General Dentistry, the American College of Dentists, and the International College of Dentists.