Pseudo-Class III: Diagnosis and Simplistic Treatment

Abstract

Materials and methods: A 10-year-old male patient, in the mixed dentition stage, presented with anterior crossbite, Class I skeletal base with an ANB angle of 1 degree, retroclined maxillary incisors and an anterior mandibular slide from the point of initial contact to maximum intercuspation. A modified quad helix appliance, made of 0.036 Blue Elgiloy with anterior extension arms, was fabricated and soldered to bands on the first permanent maxillary molars. The appliance was expanded 4 mm per side, to correct the malocclusion and the functional shift.