Nonsurgical Treatment of a Case With Skeletal Class III Malocclusion and Total Open – Bite: A Case Report

This case report presents an adult skeletal Class III and open-bite malocclusion case treated without surgical intervention using the fixed edgewise technique, an RME appliance and box elastics. The patient was an 18-year-old female who had completed her growth and development. She had a total open-bite, maxillary retrognathia, a crossbite in the posterior, and hypoplasia of the maxillary centrals and first molars. In addition, the patient’s left mandibular first molars had previously been extracted because of caries, and extraction spaces were present. We extracted the upper first premolars and right lower first molar for treatment. We then applied a RME appliance, Roth edgewise device and intermaxillary elastics. At the end of treatment, we obtained a Angle class I dental relationship in the canines, an ideal occlusion relationship and an esthetic dental and facial relationship. reatment was completed in 20 months