had crown replaced by one of his fill in doctors - but after a short period the new crown began to drift forward again. Dr. Parkin was nice but ineffective at stopping the problem. My bite is way out of wack now but I felt like Dr. Parkin didn't know how to fix it after trying for almost 1 year. He seems to be too busy to do a good job at even basic tooth repair from my experiences with a failed patch and rough finish on a broken filling repair.