Root Canal Concerns

[mzdov]

I recently finished up with a root canal and I'm having some concerns. The molar originally had a large, deep filling which had been refilled a few months prior to the root canal. (A previous dentist had said I would eventually need a root canal for that tooth.) The tooth had some discoloration particularly along the gum line, there were two slight fractures (causes from clenching), sensitivity to hot/cold and pain when biting/chewing. The root canal began before Christmas and was finished the first week of January. The temporary filling which caused gum irritation was removed two weeks later and the crown had been in place since January 20.  Two weeks later I went in to have the crown adjusted. Unfortunately, I'm still having issues with the tooth. There is some slight pain every now and then when I bite down/chew. However, the outside of the tooth (side along the cheek) is extremely sensitive. If I press against the tooth down to my jaw, there is mild pain. Along the edge of the crown where the gum meets, there is a thin line of red (no pus or swelling). I have also had this "odd" taste in my mouth ever since they started the root canal. I do have a history sensitivity to dental procedures and overall I tend to take longer to heal. Should I be concerned of residual infection? (Had two rounds of antibiotics). What is the likelihood I will need to have the procedure redone?

[scottma]

Vertical fracture may not be seen on x-ray. However, pain is usually present on biting. Pain upon biting may be caused by occlusion.

[mzdov]

If there was a vertical fracture extending to the root, shouldn't that have shown up on an x-ray? After another follow up visit, there is no infection at all.

[scottma]

If there is a vertical fracture extending down to the root, root amputation or complete extraction is the tretment of choice.Also, adjust the occlusion if the problem is not related to infection.