Can understand your concern..
As per your complain you have got two crowns placed and pain after this can be due to either of the following reasons..
One reason can be in case if the crowns were placed without root canal treatment
of tooth (it is a treatment in which the nerves and blood vessels present in the tooth are cut off either to relieve pain due to infection or as an intentional procedure to avoid complications like pain and sensitivity after crown placement) the preparation of the tooth for seating the crown if done in excess can lead to opening of nerves and when the crown is placed over opened nerves it can cause inflammation of nerve and hence severe pain
In case if the crowns are placed after root canal treatment for an infected tooth pain can be due to persistent infection leading to pus formation and pressure which is not subsided or there is some vital nerve tissue left out in any missed root canal can cause severe pain on crown placement..
I would suggest you to consult an ENDODONTIST and get evaluated clinically as well as by getting x ray
done to rule out the cause of pain.
In case if root canal is not done and pain is due to irritated nerves the crown needs to be removed followed by Root canal treatment and medicines and once pain is completely subsided crown can be placed again..
In case of root canal treated tooth also re treatment will have to be done.
You can take painkiller like Ibugesic
plus or Ketorol DT
(one tablet dissolved in half a glass of water) to provide relief.
Hope your query is solved..
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Thanks and regards..
Dr.Honey Nandwani Arora.