I was a patient of Dr Koff about 7 years ago. He did two root canals on me. Since then, I've moved to Pennsylvania and I've been changing dentists, because I keep comparing each dentist to Dr Koff, and I've yet to find one. Thank you Dr Koff for your wonderful work. You were the best dentist I ever had. I just wish you would move to Pennsylvania, Cranberry Twp to be exact!!