Hello Normally once the RCT has been done on a tooth, it doesn't cause any pain or trouble after a few days and only after that the capping procedure is done. Since you are feeling pain in your tooth, first of all, when was the treatment done? Secondly, it would be better if you could upload x ray for better clarity.

An x ray would be the best thing needed to give you the right opinion. A before x ray and an after x ray is needed.

Hi Sorry to hear about the discomfort. First of all don’t be confused in terminology. Ceramic crowns placed on root canal teeth are cemented not implanted. There can be two reasons of your pain/discomfort 1) If there is extra cement impinging on gums leading to inflammation 2) Tooth related pain : was the pain there after completion of root canal and before crown cement action? In this case the infection still persisted and needs medication. Or it started after crown cementation? If it started after cementation of crown, Dr will check for any high points in the crown which means checking your bite with the crown.