An orthodontic implant structure (2) that is used by being implanted in bone in an oral cavity includes a first screw (6, 6B) having a screw body (6b) and an engaging portion (14), a plate securing implement (12, 13), a second screw, and a base plate having a first surface (4p) and a second surface (4q) and in which a first attachment hole (24A, 24B) and a second attachment hole (26) are formed.
