Hi doc. I had a root canal for 3 of my front teeth, got them capped. There was a cyst in my gums due to an old injury. Due to which my incisor got dead. It turned black in appearance. The Dr. did rc and injected a solution to limit h cyst so that it does not spread. He has closed the rc nd capped it but the cyst still prevails as seen in x-ray. There was never any sort of pain in that place. please suggest if this wud effect me in future?