<s>[INST] I had a root canal on my #13 tooth on May 1, 2014.  It was done with an old crown on the tooth.  On July 1, 2014, the crown cracked.  My dentist temporarily fixed the cracked crown and put it back on.  In three weeks I went back to get fitted for a permanent new crown and left the office with a new temporary crown.  My gum/tooth was still hurting and has never really quit since July 1st.  I received my new permanent crown on this last Monday, August 4th.  The doctor gave me some antibiotics and some Tylenol 3 to take.    I am to return to his office on Monday , August 18th to let him see how my gums are.  My gum/tooth is still hurting me and I am taking the antibiotics and pain medicine as he instructed.  My question is should I return to the doctor who did the root canal and let him check it also.  I have not been pain free since I cracked the old crown on July 1st.  Today is August 8th.  Any suggestions you have will certainly be appreciated.  My dentist says it is the gum that is hurting me.  I am not sure.  I have talked to some other people in the dental field who say it could be the root of the tooth has cracked also.  Please advise.  ( I have two knee replacements and the continuous pain and possibility of getting an infection from this tooth/gum is a very serious problem that I am dealing with.)  Thank you again for your consideration. [/INST] Thanks for your query, I have gone through your query. The pain in the gums and tooth could be because of the gum injury or irritation secondary to the placement of the crown. The other possible cause could be because of the fractured tooth root. Consult an oral physician and get a radiograph done like IOP AR or RVG to rule out fracture or bone loss around the tooth. Then if you have a root fracture, then the tooth has to be removed. If there is a gum infection get the teeth cleaned. I hope my answer will help you, take care. </s>