The utility model discloses a substitute body for
dental implant, the substitute body is made of resin material and comprises a
butt joint part, a positioning section and a fixing section, the
butt joint part is arranged inside the fixing section, the
butt joint part is connected with an
abutment, the positioning section is connected with a
dental cast body, the positioning section, the connecting part and the fixing section are arranged along the same central axis, and the butt joint part is connected with the positioning section. A butt joint groove is formed in the center of the butt joint part, the butt joint groove comprises a transition section and a clamping groove with the cross section being in a regular polygon shape, arc-shaped protrusions are arranged on the outer surface of the positioning section, the number of the protrusions is the same as that of the sides of the clamping groove, and the positions of the sides of the clamping groove correspond to the positions of the protrusions in a one-to-one mode. The
oral cavity replacement device is reasonable in structural design, conditions in the
oral cavity of a patient can be restored more sufficiently after the base is installed on the replacement body, and the replacement body can be installed and adjusted more conveniently; a dentist
technician accurately restores the condition in the
oral cavity of a patient through the replacement body, and the manufactured false tooth is excellent and is more adaptive to the oral cavity of the patient.