Medical Humanities - BJSTR Journal

Abstract

An adult female (30 years old) came to our clinic with a chief complaint about not able to chew food well and bilateral posterior crossbite. Clinical examination revealed skeletal Class III malocclusion with #posterior crossbite and poor arch coordination. Due to her refusal to receive #orthognathic surgery, non-surgical treatment was adopted. With successful width decrease of lower arch by two 1st molars extraction; then mesial drive of two 2nd and 3rd molars with closed coil spring, Class III malocclusion was corrected by ISW technique combined with Class III elastics. Treatment was completed in about 18 months and a desirable occlusion after the active treatment was achieved. Coordination between the upper and lower arches is one of the most important aspects of achieving stable functional and esthetic results during #orthodontic treatment. Because a transverse discrepancy could induce an adverse periodontal response, unstable dental camouflage, and functional and esthetic problems, maintenance of an adequate overjet during treatment should be essential [1-6]. ISW (improved super-elastic Ti-Ni alloy wire, developed by Tokyo Medical and Dental University) for non- surgical treatment of adult skeletal Class III malocclusion with poor arch coordination will be discussed. An adult female (26 years old) came to our clinic with a chief complaint of not able to chew food well and bilateral posterior crossbite. Her lateral profile was concave, and the frontal view showed slightly #facial asymmetry phenomenon (Figure 1). Clinical examination revealed bilateral Class III molar relationship, right canine class III tendency with left canine class I relationship, bilateral posterior crossbite, and mild crowding over lower anterior teeth with mandibular shift to right side resulting in facial asymmetry (Figure 2). Panoramic film showed #28, #38, #48 existence (Figure 3).

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ISW Treatment for Skeletal Class III Malocclusion with Poor Arch Coordination by Chien Chih YU in BJSTR