When the meat grows in the middle of the tooth decay, it is necessary to take oral X-ray to determine the source of the polyp and then deal with it. If the cavity formed for a long time has rough edges, stimulates the surrounding gums, and forms gum polyp after deep cavity, the polyp can be removed under local anesthesia, and the cavity shape can be prepared after grinding away the decayed tooth tissue with a fissure drill, and the cavity can be cushioned near the pulp, and the cavity can be filled with glass ionomer or silver amalgam or the inlay can be made. If the cavity is too deep, the pulp cavity is open, and the pulp is chronically infected by bacteria to produce pulp polyp, the polyp should be completely removed while the pulp is extracted, the root canal should be thoroughly flushed, disinfected, and the root canal should be filled to make a full crown restoration.