I found Dr. Miller to be friendly, calm, focused, gentle, thorough and as pain-free as possible. My visit ended up being somewhat unusual. I was referred by my dentist for a root canal since the tooth in question was in a great deal of pain. Dr. Miller did over an hour of tests to make sure I needed the root canal. Each test pointed toward needing a root canal. So he numbed me up and was all ready to proceed with the root canal, and he asked me one more question. (The question was, "Do you feel anything in that tooth?") When I answered (yes), he said that he would not do the root canal. We discussed it for a few more minutes and his conclusion was the same. I was amazed but trusted his judgment. Well, it turns out that the pain in the tooth went totally away a few days later, and I did NOT need a root canal! (The tooth was probably just bruised.) I imagine that other endodontists also would not do a root canal if it were not needed, but his confidence in his judgment, not to mention he was totally right even though every test leading up to numbing me was "pro" root canal, is extremely impressive. I was thinking during the tests how professional and competent he was, but the final result really proves it.