Had a root canal in my lower jaw first molar no complaints unroll today. i feel a lot of pain in the restored tooth. is this normal?

Depends: The restoration restores the bite. Now the tooth has contact -- perhaps too much or too early. See your dentist to check the bite and adjust as needed. They may need to remove it from contact for a time in order to allow the ligament surrounding the roots to heal. Likely inflammation and/or bruising of the ligament. Don't wait -- go and get relief. Good Luck.

It's possible: Even though the tooth had root canal therapy, it needs to be re-evaluated. Infections can reoccur, cysts can form, teeth can crack. Your dentist needs to physically evaluate the tooth to determine the cause of your discomfort. Root canal therapy does not imply a guarantee that you will never, ever have another problem with the tooth.

See an endodontist: Oral infections such as certain chronic abscess or cracked, fractured teeth can often be difficult to diagnose and treat. In addition to dental school, endodontists receive 2-3 more years of advanced education in this kind of diagnosis and treatment. That’s why you should see an endodontist for proper diagnosis and treatment.