Hi S..
Our son, who will be 9 next month, has gone to a wonderful pediatric dental office in Berkeley since he was your child's age. He actually enjoys going to the dentist! We go to the office at 906 Ensenada, phone ###-###-####. The dentists names are Joseph Wampler, Neil Katsura, Robert Khalil, Arnold Nakazato, Carole Miyahara, and Ameneh Khosrovani. Our son usually sees Dr. Nakazato, but all of the dentist seem to be great. We know a number of other families who also go to this practice, and they all seem to feel the same way we do.
I think they also have another office in Berkeley, but since we live in Albany, we go to Ensenada.
Good luck!
K.