Micro-implant combined dental support type arch expander

The utility model discloses a micro-implant united tooth support type arch expander which comprises a base plate, a spiral expander and a united crown, the connecting crown is connected with the teeth; the base plate is matched with the palate mucous membrane; characterized in that it is characterized in that it comprises, wherein the base plate comprises a first base plate and a second base plate; the first base support and the second base support are fixedly connected with the connecting crown. The first base support and the second base support are respectively and fixedly connected with thescrew expander; at least one planting hole is formed in each of the first base plate and the second base plate; and the diameter of the implantation hole is matched with that of the implantation nail, so that the risks of tooth compensation, tooth root absorption, buccal alveolar bone perforation, alveolar bone excessive absorption, high recurrence rate and the like caused by the conventional dental support type spiral a