My transition to Dr. Chang was smooth and becoming one of his patients was a relief in contrast with my prior dentist. Dr. Chang is modern and keeps very up-to-date in both his knowledge and his technology.It's a pleasure to be in his care. Thoroughness is a key word, I would say. Efficiency is another. His hygienists are careful, gentle, and also thorough. I wish I had more than a biannual check-up! When I have had problems, he has treated them successfully, surprisingly painlessly, and with good follow-up..