His aggressive cleaning, scraping under the gum line and causing bleeding led to the need for gum surgery. I told my new dentist the method he used to clean my teeth and he cringed. It was due to the intense over zealous cleaning than caused my gum recession. Thank goodness we moved, you trust what your dentist is doing is correct. You have to be your own advocate. The removal of fillings and my crown had to be corrected.