Is it normal to be in pain this long after having crown prep & placement?

It's not unusual to have a patient wear a temporary crown for an extended period of time to wait as symptoms improve but I typically prefer to have the permanent crown placed and allow the tooth to recover with the permanent crown on. This way, the tooth can improve with the final restoration and does not need any further adjustments that can bring back sensitivity. Remember, any time a procedure is done to a tooth, the tooth is undergoing some form of trauma that it must recover from, and that recovery time is different for different patients. You may want to consider getting some MI paste from your dentist, it's a sensitivity toothpaste that, in my opinion, works better than sensodyne. If your bite is correct on your new permanent crown, the tooth should eventually get better on its own. If you still experience symptoms that aren't improving over time once the permanent crown is placed, you may want to see an endodontist to see if the nerve is irreversibly damaged and needs further treatment. Hope this helps!

If the pain from cold lasts longer than 60 seconds after the cold is taken away you may have a nerve issue requiring a root canal.  I would have the dentist take a CBCT (a 3D type of xray) of the area if he has the machine to do it.  Or just a standard xray and check the ends of the roots for infection.  Odds are if it's been hurting this long the nerve is compromised.  It can happen sometimes when you are working really close to the nerve.  Good luck. 

Hi:
The nerve of the tooth has to be tested to evalute for root canal.  I rare occasions, the trauma of the dentist procedure can takes up to 2-3 months to completely go away in absence of nerve damage.
Best,
Dr. Maddahi

No, it is not normal to be in pain after crown placement. Sounds like a nerve in the tooth is inflamed. You might want to consider asking your dentist to check and verify that your bite is normal on this crown in occlusion AND in any movements. MI paste might be helpful if there no interferences with bite.  If the pain is not subsiding, you might want to consider a root canal therapy. That will take care of any sensitivity.

At this stage I would highly recommend you see an endodontist (root canal specialist) to evaluate your tooth pain. Sensitivity or very slight pain over a couple months during a "healing phase" isn't that uncommon, but you shouldn't have to live with real pain for that long. The endodontist will test the tooth to determine if the nerve is dead (a dead tooth nerve will cause pain and may eventually abscess), or irreversibly damaged, or just irritated with the potential to heal up, or cracked (fractured). The first two can usually be treated with root canals, the third is a "watch and wait" game, or if you can no longer tolerate waiting, you could go ahead with a root canal which should end your pain. The fourth...that's the worst case scenario, as a fractured tooth oftentimes cannot be treated and will cause long term pain, especially to biting. Often called cracked tooth syndrome (or CTS), the crack may extend into the nerve fibers or down the root into the nerves in the bone and around the roots. Fractured teeth can sometimes be saved, but often times will necessitate removal (tooth extraction).One thing that is EXTREMELY IMPORTANT is to make sure your dentist has adjusted your bite so that it is not hitting higher on your new crown was placed. That alone can cause a lot of pain.

If the prep was close to your nerve, it is very possible for the nerve to be hypersensitive for a few weeks. It might be a "reversible pulpitis" which will heal itself, or it might be an "irreversible pulpitis" which might require Root Canal treatment. Have your dentist make sure that your occlusion (bite) is perfect, because if you are putting excess pressure on that tooth in any of your jaw movements while awake & especially while asleep, the tooth will remain uncomfortable.

making a crown its a enamel removal, so dentin its exposed, and so sensitivity could be bigger,the more time the doctors wait for setting the final restoration,this can make a more higher hyper sensibility,antinflamatories, high primary bite points ,and sealing ,time ,can be issues to be focus on, also if there was a previous restoration,that tooth, might have a root canal treatment ,which is a simple step to make that hyper sensitivity to be removed complete.

Wait for a little while longer. If the pain gets better each day then you are on the right path. If the pain level persists, you may need a root canal.