is it possible after the root canal fistul is appeared on the gum?what is the reason behind it??can you please tell me?
Hello, Welcome to Chat Doctor forum. Usually fistula develops due to spread of infection from periapical tissues into sinus spaces. If fistula appears on gums after root canal treatment, this is due to faulty diagnosis regarding teeth to be root canal treated. An x-ray will help to evaluate fistula through inserting GP cone into interdental tissue spaces. If necessary, adjacent teeth has to be root canal treated and abscess has to be Chat Doctor. Hope this helps. This fistula has to be try