Correction of Skeletal Class II Malocclusion using Functional-Fixed Appliance Therapy

Abstract

Single-phase treatment started during late mixed dentition using functional followed by fixed appliance therapy has proven to be the most effective approach to achieve correction of Class II malocclusion. This case report demonstrates the use of this treatment approach in an 11-year-old girl with skeletal and dental Class II malocclusion, large overjet, deep overbite, increased incisor exposure and a gummy smile. She was given a functional appliance for 1 year which was immediately followed by fixed mechanotherapy for final finishing and detailing of the occlusion. The magnitude of skeletal and dental correction achieved, along with the dramatic improvement in facial appearance of the patient, provides a strong case for establishing the efficacy of this treatment modality.

Analogue simulation of pharyngeal airflow response to Twin Block treatment in growing patients with Class II1 and mandibular retrognathia

“…The appliance is mainly applied to the mandibular skeletal retrognathia patients who are in the peak period of growth and development. It was proved to be an effective method in promoting mandibular advancement and harmonizing facial profile, and thereby has been widely used in clinical orthodontics 7 8 .…”