The utility model discloses an orthodontic anchorage nail with double-ring buffer structure protective sleeve, including protective sleeve body and anchorage nail, and the anchorage nail is by
threaded rod, anchorage nail head, anchorage nail neck and anchorage nail nut is composed, and the lower extreme of anchorage nail nut is fixedly connected with
threaded rod, and the top of anchorage nail nut is equipped with anchorage nail head, and the anchorage nail neck is equipped between anchorage nail nut and anchorage nail head, and the top of anchorage nail is connected in sleeve joint with protective sleeve body, and the protective sleeve body includes outer protective sleeve and inner protective sleeve, and the surface of outer protective sleeve covers in inner protective sleeve, and the center of inner protective sleeve is equipped with sleeve joint hole, and the surface of outer protective sleeve is equipped with upper buffer ring and lower buffer ring. The utility model discloses sleeve joint connection has protective sleeve body at the top of anchorage nail, can avoid the direct contact of anchorage nail and labium, effectively prevent the
mucous membrane ulcer or hemorrhage caused by friction when speaking,
mastication, brushing teeth of patient, can carry out anti -inflammatory to the contact place of anchorage nail and gum simultaneously.