I went to Dr. Piskor because of a cracked filling in a molar. After five visits (I went to some appointments only to discover that the crown wasn't ready yet), he installed a permanent crown on the bottom molar. It was too large, so he ground the upper molar to accomodate it. He ground so much that the upper molar then needed a crown, for which I had to pay. Five more visits and several thousand dollars later, I had two crowns. Less than a year later, both crowns had to be removed by another dentist for root canals and new crowns. Keep in mind one of the teeth was fine before Dr. Piskor touched it. Dr. Piskor should not be allowed to practice dentistry.