Jang SJ, et al. - Here, the physicians compared the amount of incisal tooth wear in the maxillary central incisors of patients with skeletal Class III malocclusion and anterior crossbite receiving one-phase or two-phase treatment. Furthermore, they tested the hypothesis that tooth wear would differ according to treatment modalities. Two-phase treatment caused less wear of the maxillary central incisors than did orthodontic camouflage treatment, despite the long duration of early treatment.