01/09/2025
Case Description
A patient presented with a skeletal and dental Class III malocclusion associated with a constricted maxilla. Clinical and radiographic evaluation revealed maxillary transverse deficiency with posterior crossbite and an anterior crossbite due to the skeletal discrepancy. The initial molar and canine relationships were Class III bilaterally, with proclined mandibular incisors and retroclined maxillary incisors contributing to the negative overjet.
Treatment Plan
A non-surgical camouflage approach was adopted. The treatment objectives included correction of the transverse deficiency, establishment of a functional and esthetic occlusion, and improvement of facial balance. Maxillary expansion was performed using a bonded rapid maxillary expander to address the transverse constriction. After adequate expansion, comprehensive fixed appliance therapy was initiated in both arches. Mechanotherapy included alignment and leveling, space coordination, and the use of intermaxillary elastics to aid in the sagittal correction and camouflage of the Class III skeletal base.
Treatment Outcome
At the end of treatment, the patient demonstrated a well-coordinated arch form with resolution of the posterior crossbite. Dental camouflage was achieved, resulting in a Class I incisor, canine, and molar relationship. The overjet and overbite were normalized, and facial esthetics were enhanced. The final occlusion was stable, functional, and met the treatment objectives without the need for surgical intervention.