Root canal therapy, a word that many people may not know, is a bit strange. But you know, this is a treatment for diseases. Yes, root canal therapy is the treatment of some oral diseases: periodontitis, pulpitis, dental caries and so on. It can treat many oral diseases. So, does root canal therapy hurt? An expert in oral plastic surgery in Beijing said that in root canal therapy, after drilling teeth under local anesthesia, if patients can bear it, they will directly pull out the pulp nerve with barbed needles and then put anti-inflammatory cotton into the root canal. After drilling teeth under local anesthesia, a kind of "nerve-killing" drug is put into the pulp cavity, and the pulp nerve dies under the action of the drug, loses its vitality and is then pulled out. Just after root canal treatment, the teeth may have some postoperative reactions, causing pain, but generally it will pass in about 3 days; People who are allergic to root canal filling materials will also feel pain after treatment. If the treatment is successful, it won't hurt. Root canal therapy can not only solve the pain, but also preserve the affected teeth, which is not only low in cost, but also conducive to maintaining the long-term health of the oral cavity. The root canal of teeth is complex and there are many lateral root canals, which can not be reached by general instruments and the treatment will not be too thorough; Of course, some technical factors, such as insufficient expansion of pipelines, cannot be ruled out. Root canal therapy is complicated, which requires doctors to be familiar with the anatomical knowledge of tooth structure and skilled operation techniques, and also requires special root canal therapy instruments, equipment and materials. more