Dr. Baum, and his staff are wonderful. He is very friendly and gives each individual exactly what they need. I had broken my retainer months before seeing him and went to a random orthodontist that charged me $350 for a new retainer and he adjusted it to move my teeth further out, doing the opposite of what I wanted. My dentist referred me to Dr. Baum. I ended up choosing to get the invisalign, because I already had braces and Dr. Baum said it would only take about 4-6 months. I saw instant results.