Personal Statement About Dr. Chang Dr. Chang started practicing general dentistry in 1992 and has specialized and limited his practice in periodontology since 1999. Professional Education and Training: Columbia University College of Dental Medicine – Postgraduate Certificate and Masters of Science in Periodontics Loma Linda University School of Dentistry – Doctor of Dental Surgery National Taiwan University School of Dentistry – Doctor of Dental Surgery Professional Societies: American Dental Association California Dental Association American Academy of Periodontology http://www.vitals.com/dentists/Dr_Henry_H_Chang_5#ixzz3fnpK53X0