Well, this is not exactly about Dr. Knauer, but his staffs. They did not ask me the things that I would think they would before doing it, but just did it and of course it was not covered by my insurance. When I called about it, they were really nasty about it, and said it is my responsibility to refuse the treatment...
About Hygienist: I do not have a name for this hygienist, but I never had such a pain during the cleaning, and it was not because I was not taking good care of my teeth.(Because she said it was really clean!)