Three-Dimensional Correction of Class II Division 1 Malocclusion Using Headgear Activator Combination: A Case Report

Correction of Class II malocclusion in vertical growing patients poses particular challenges because vertical growth patterns can exacerbate the existing skeletal discrepancy between the upper and lower jaws. In such cases, orthodontic treatment often aims to address both the sagittal (front-to-back) and vertical dimensions of the malocclusion. This case report details the successful use of activator-headgear therapy for correction of Class II division 1 malocclusion in a vertically growing patient with a mandibular deficiency and a maxillary excess. The treatment caused correction in all three planes of space by improving the profile of the patient by sagittal correction, controlling the vertical growth pattern and correcting the transverse deficiency. Key words: growth modulation, activator-headgear, dentofacial orthopedics, Class II division 1 malocclusion, three-dimensional correction