I have many fillings in my mouth. All of them were fine except for the one on my first premolar on the upper right side. It was pretty deep and it has really been painful for the last two weeks. The dentist said I needed a and a crown for this tooth. I cannot afford both just now. I can barely afford the root canal. Do I need to get a crown immediately after a root canal? Is it okay to wait for a month or two to have this tooth treated? Also, does a canal hurt? I have never been into this treatment before. Please help! The pain is getting more persistent each day. I would love to hear your advice. Thank you so much in advance.