Dr. Brown's work is absolutely first rate (other dentists have said so upon examining my teeth). His calm, low-key demeanor is a big help. He is careful to make certain that there is no pain, and that the discomfort of the procedure is minimized.
I have had several fillings and three crowns done by him, and all have given me no problems once he had completed the work. He teaches dental practice at the Harvard Dental School, and is happy to explain what he is doing.