He allows assistants to seat crowns. One asst. actually shortened a new molar crown (prior to cementing). She continued to sand it down, while I kept telling to stop. I followed up with Dr. Toney because other crowns were showing 'wear down' spots because I believed my bite was now compromised. He claimed he saw no problems. I now have two teeth broken completely off at the gum line. I'm forced to go to a prosthodontist.