Optimization of early orthodontic therapy: the potential of preformed elastomeric eruption guidance appliances (EGA) in addressing class ii malocclusions

The therapeutic management of malocclusion in mixed dentition represents a crucial challenge in orthodontics. This study aims to illustrate the therapeutic approach adopted in a second class I division case, characterized by increased overjet (OVJ) and overbite (OVB), multiple dental rotations and contracted upper arch, by the use of preformed elastodontic guided eruption appliance (EGA). Materials and Methods: The initial clinical diagnosis revealed the need for early intervention to improve OVJ and correct the sagittal and vertical relationships of the den-to-alveolar process. A 10.5-year-old male patient with Division 1 Class II malocclusion was treated using two different EGA devices, both mixed and permanent dentition, for a total period of two years, with an average usage of about 10 hours per day. Results: The results obtained were significant, with complete resolution of malocclusion at the end of treatment. The active and passive forces generated by the shape of the device contributed to the correction of dental rotations and the improvement of verticality, reducing the OVB. Early use of such devices has been shown to significantly reduce the risks of dental trauma, while requiring low patient compliance and minimal psychological and psycho-social impact. Conclusions: The adoption of EGA has proven to be an effective therapeutic option in the early treatment of Division II malocclusion 1. The sequential approach with two different devices has helped to optimize the therapeutic results, reducing the need for more invasive orthodontic interventions at a later stage. However, it is essential to stress the importance of accurate diagnosis, appropriate planning and active collaboration of the patient to ensure the success of this interceptive approach.