Orthodontic arch wire error evaluation method based on error evaluation domain

The invention discloses an orthodontic arch wire error evaluation method based on an error evaluation domain, relates to the technical field of orthodontic arch wire evaluation, and aims at orthodontic arch wire curves of which the spatial position deviation between a bending point and an adjacent bending point is too large. An appropriate evaluation method is selected to evaluate the error between an actual orthodontic arch wire and a theoretical orthodontic arch wire, and the technical key points are as follows: the theoretical orthodontic arch wire and the actual orthodontic arch wire are spatially transformed to appropriate positions, and whether the overlap ratio meets the requirement is judged; projecting an actual orthodontic arch wire curve and a theoretical orthodontic arch wire curve; judging whether the offset distances of the bending points after projection of the three planes meet requirements or not; setting evaluation parameters of an actual orthodontic arch wire curve after projection; judging