Dr. Charles received his D.D.S. from the University of Illinois and a Certificate in Periodontics from the University of Southern California. Following completion of his post-graduate education, he remained at U.S.C. for 7 years as an associate clinical professor and director of Junior and Senior Periodontal Clinics.  He also taught in the graduate program at U.S.C.

Dr. Charles currently lectures on various topics related to periodontics, implant surgery, and periodontal microsurgery.  He has presented to the American Dental Association, The California Dental Association, the American Academy of Periodontology, the California Society of Periodontists and the Western Society of Periodontology.  More recently he has mentored three undergraduate dental interns from Boston University Dental School.  He has also served on an advisory committee for a dental implant company and has developed instruments used in periodontal micro-surgery.

He has served as Trustee of the American Academy of Periodontology, representing the western United States and has been President of the California Society of Periodontists and the Western Society of Periodontology.  In 1995, he was acknowledged for contributions to the specialty of periodontics and valuable public service.