I changed dentists because I wasnt happy with my old one. He pulled out two tooth because he was not able properly clean the root canals, resulting in a tooth b

I changed dentists because I wasnt happy with my old one. He pulled out two tooth because he was not able properly clean the root canals, resulting in a tooth bridge that needed 2 tooths to be sanded down to handle that bridge. The new dentist office told me I had cavities under the super old and also new fillings. They fixed it all and couple months later my tooth aches from cold water and food went away. The unnoticed cavities only found on roentgen were causing me so much problems until the teeth were fixed and healed...