ISW for the Treatment of an Adult Facial Asymmetry Skeletal Class III Case

Abstract

In this case, ISW (improved superelastic Ti–Ni alloy wire, commonly called a lowhysteresis wire, developed by Tokyo Medical and Dental University) was employed in the treatment of an adult facial asymmetry skeletal Class III case without extraction and surgery. A 23-year-old man came to our clinic with a chief complaint of poor bite and for esthetic consultation. A clinical examination revealed a bilateral Class III molar relationship with anterior crossbite and mild crowding with a lower midline deviated to the right. Active treatment included establishment of a crossbite arch in the upper arch by using an ISW without extraction and removal of the lower-right fixed bridge prosthesis. Using ISW and adequate Class III intermaxillary elastic traction meant that the malocclusion was corrected with a minimal orthodontic approach. Treatment was completed within 19 months, and a stable occlusion was achieved after the active treatment.