Dr. Tran is very unprofessional and disrespectful to his patients. I recently visited his office for a cleaning and exam. After I was presented the treatment plan from Dr. Tran, I casually mentioned that the treatment was expensive and in no way said it to be disrespectful. Dr. Tran became very angry, stormed out of the operatory, and slammed his office door. I was stunned and speechless. I have never been treated this way by any physician or dentist in my whole life. I'm not sure if David H. Tran has personal or emotional problems but I do know that I will never visit his office ever again except when I go to pick up my x-rays to bring to my next dentist. I would advise anyone reading this review to avoid this dentist and his bizarre behavior.