A teenager applied to an orthodontist complaining about tooth malposition. Objectively: the face is without pecularities. Occlusion of permanent teeth is present. There are no abnormalities of jaw correlation in three planes. The 23 tooth is vestibularly over the occlusive plane; the space in the dental arch is less than 1/3 of crown size. How is it possible to make room for the malpositioned 23 tooth?