I visited Dr. Hornstein for a regular dental cleaning after finding him on 1800dentist and also making sure he took my insurance. I was made to sign a form stating that I realized that they would do treatments and make recommendations based on "patient needs" rather than what their insurance would cover. He identified 3 cavities during my cleaning (strange as I have not had any cavities in years), but I made another appointment to have them filled. I was not asked whether I wanted any additional treatements or "desensitivisation". However, when I got the insurance statement and his bill, I was hit with 3 charges of "desensitivisation" of the tooth that is a "miscellaneous" charge NOT covered by my insurance (in fact, they had never even heard of it). The dentist simply stated it was a necessary part of the procedure and I was required to pay it (over $100 per tooth) but if it was necessary, why hasn't the insurance company heard of it? They also had a new billing specialist so I had to make several calls to them and my insurance company to get their bills straightened out. I ended up paying $400 for fillings and I have BLUE CROSS BLUE SHIELD - GOOD insurance!