P Vernon Erwin DDS Inc (Dr. Erwin) is considered one of America's foremost experts on rejuvenation dentistry. Dr. Erwin has been a student of healthful living his whole life long. Even in his earliest years, his mother taught him Natural Hygiene principles and the dietary lifestyle. Dr. Erwin carried on the tradition by rearing his children by those same principles. He is also a former instructor of dentistry and basic sciences at both USC and Loma Linda.