Back tooth fixing measurer for invisible correction mandibular leading oral cavity scanning

The invention discloses a posterior tooth fixing measurer for invisible correction mandibular leading oral cavity scanning, which comprises an adjusting cylinder, an upper elastic adjusting seat and a lower elastic adjusting seat, an upper elastic biteplate for occlusion of upper teeth is arranged in the upper elastic adjusting seat, the upper elastic biteplate is movable, a lower elastic biteplate for occlusion of lower teeth is arranged in the lower elastic adjusting seat, and the lower elastic biteplate is movable. The lower elastic biteplate can move, the number of the adjusting cylinders is at least two, the top ends of the adjusting cylinders are matched with the bottom face of the upper elastic adjusting base in a rotating mode, and the bottom ends of the adjusting cylinders are matched with the top end of the lower elastic adjusting base in a movable mode. The upper elastic adjusting seat, the lower elastic adjusting seat, the upper elastic reset plate and the lower elastic reset plate can be bent and