Went to see a dentist for hypersensitive on one of my molar teeth. He said a crown would solve my problem. But after the crown my problem remains. Went back to the same dentist and he said another crown would solve my problem. My problem got worse after the second crown. The lower and upper row was feeling weak, sensitive and a throbbing sensation. Went back to the same dentist and again he said another crown would solve my problem. This went on and on till after the fifth crown he referred me to an endodontic who solve my whole problem with just one root canal done.