If Dr. Shore tells you that you need to replace a crown or get any new crowns. Get a 2nd opinion. I was going to her for years. I doubted that she had been providing great service for me, so I decided to see another dentist. I found out that I had decay on some of my front teeth that she never told me about even though I had exams and cleaning. I think she wanted to make sure I would need more crowns. I also found out that I had periodontal disease that needed to be taken care. I will never go back to her. Terrible dentist. Her assistant is awful.