This is the best dentist ever. He does a very thourough job cleaning. I visit him every 6 months and have had 1 cavity in my life time. My parents have been with him for over 30 years. My mom's bridge that Dr. Lum did in the 80's is even still in great shape. I have referred over 10 clients to him, including my in-laws over the years, and everyone loves his work.