The invention provides a novel
oral cavity orthodontic appliance, wherein the appliance comprises a tooth socket body, and a orthodontic bench is arranged on the tooth socket. The orthodontic bench is arranged on a lingual side of incisors or a lingual sides of incisors and canine teeth of the tooth socket body, and comprises a contact surface and a holding surface, wherein one end of the contact surface is connected with the tooth socket body, the other end of the contact surface is connected with the holding surface, and the orthodontic bench is a plat bench or a sloping bench, when the orthodontic bench is a plat bench, the contact surface matches with a occlusalf surface of maxillary-
mandibular teeth, when the orthodontic bench is a sloping bench, the contact surface is in parallel with a lingual side of the a occlusalf surface of maxillary-
mandibular teeth, or the contact surface and the a occlusalf surface of maxillary-
mandibular teeth form an included angle. According to the invention, an ordinary tooth socket and a flat bite plate or an inclined bite plate are integrated into one body to replace the clasp and the flat bite plate or the inclined bite plate with adjacent hook-type retention. The appliance provided in the invention enlarges indication scope of orthodontic invisable aligner technique, and the appliance can be applied in a bracket
treatment system. The appliance has characteristics of comfortable wear, transparentness and beautiful look, and is made of an elastic
polymer material. The appliance can give continuous elastic force to the tooth that needs to be intruded or led, so that the orthodontic effect is better.