If this is the same Chung that also works at A.C.E. dental extractions in Brainerd, then he has no business practing dentistry anywhere, he will not explain what he is doing and he could care less how much pain you're in when he is doing something as simple as a extraction. He spent over a hour and a half torturing me and was not willing to explain that he had broken the tooth (while trying to doing the extraction). I have had plenty of dental work done and no one has ever let me suffer the way he did. He has no business practicing dentistry.