I had such a bad experience with Korn that I discontinued the treatment after having wasted four months and $3,000 on him. The reason I saw him was because he is said to be "world-renowned". He showed up at consultation, told me that everything could be fixed and then disappeared the next two appointments. He left all the important work such as installing the braces to a doctor in his clinic who was so indifferent that she wouldn't bother to say hi to you during the appointment. The assistants did all the work, they are nice, but they did a poor job. My braces were hurting me day and night so much that sometimes I wanted to cry, couldn't sleep at night because the wire stuck out and rubbed my mouth constantly. Korn then adjusted my braces the next two appointments, but he was always rushed and condescending. He scolded me loudly like to a child for loosened brackets. He was impatient when I asked him about the treatment. And the worst is that he uses out-dated method, doesn't use rubber bands, and moves your teeth so little at a time. After four months, I saw little changes to my teeth, and after so much suffering I dropped him and switched to another doctor, who luckily was the complete opposite of Korn.