Have cold/heat sensitivity in a back tooth. Old dentist retired, went to new guy that relatives use. He did a great j9b, but crowned the wrong tooth. He charged mec $1300 to crown the wrong tooth. Not saying the tooth didn't need it. It might have done. But it wasn't the tooth I was containing about. He kps telling me that the x-rays are fine on the tooth that hurts, so just go use Sensidyne. No second chances for this putz.