▎ 摘　　要

NOVELTY - Plastic root canal file comprises polymer material A, conductive material B, reinforcing material C, and additive D. The polymer material A is one or more of polycarbonate (PC), polyether ether ketone (PEEK), nylon, polypropene (PP), or polyoxymethylene (POM). The conductive material B is one or more of carbon black, carbon fiber, and graphene. The reinforcing material C is one or more of glass fiber, carbon fiber, and aramid fiber. The auxiliary agent D is one or more of ADK STAB AO-80 (high molecular weight type highly effective hindered phenolic antioxidant), A-621, A-608, and glyceryl acyl ester. USE - Plastic root canal file for use in medical appliances. Uses include but are not limited to medical appliances such as medical instruments, medical appliances, medical equipment, medical devices, medical equipments, and medical equipment. ADVANTAGE - The plastic root canal file has certain electrical conductivity and the raw materials have reduced cost. The plastic root canal file has high hardness and strength, which can meet the requirements of clinical root canal files, and if there is a small probability of broken files, it can be heated by a thinner wire hook, and the plastic is softened by the heated wire hook, so that the wire hook can be inserted into the plastic broken file, and the wire hook can be carried by the wire hook after it is cold cut, and after the wire hook is cold cut, it is carried by the wire hook and the plastic broken file is taken out.