pressure pain since crown prep

I had a cracked molar (second back left lower side) and my dentist said I needed a crown. I had my crown prep done a month ago. Dr. removed the cracked portion, placed a pin in and rebuilt up the tooth. The dental hygeinest made my temporary crown. I went home, and when the numbing wore off, I was in severe pain. not just my tooth. but also my whole face and jaw. I called the dr. and was told it was normal. after several days pain STILL did not go away. I went back in and the dental hygeninst drilled the tooth so it didn't hit the upper teeth. While doing so she drilled THROUGH my temp crown and hit a nerve then patched the hole.  I was in worse pain than when I went in. I begged for antibiotics, and pain meds which my dentist reluctantly prescribed. he told me I needed a root canal. So, I promptly went to an endodontist. who spent an hour with me.  The endo advised me it was a jaw problem from clenching and grinding my teeth (which explained the face and jaw pain) and also a poorly constructed temp crown. Just to be sure, I went back 2 weeks later, and had the endo check me out again. same conclusion, and he advised to go get my permanant crown on. Went in two days ago, and had my permanant crown put on. Now my tooth feels 90% better since having the perm crown put on except for ONE thing, I still can't eat on that side at all! everytime I try to bite down there is a sharp pain that shoots into my tooth where the crack/pin was. What could be causing it?

[Jerome Bogin, D.D.S.]

It sounds like there is an inflammation of the nerve(pulpitis). This can be reversible(the nerve gets better) or irreversible in which case you would need root canal therapy.If you can not bite down without discomfort it is an unacceptable situation and the tooth has to be treated.

[scarletakb]

so, how long is a reasonable amount of time for me to wait it out, to see if the nerve calms down?

[crowns]

A related discussion, Painful crowns was started.

[petesbbq]

A related discussion, Is this PAIN normal was started.