# Two-Phase Orthodontic Treatment in an Adolescent With a 15 mm Severe Overjet

## TL;DR

A 10-year-old boy with a severe overjet underwent two-phase orthodontic treatment, resulting in improved dental alignment and facial profile.

## Contribution

The paper presents a successful two-phase orthodontic treatment approach for Angle Class II division 1 malocclusion in an adolescent.

## Key findings

- Phase I maxillary expansion effectively addressed mandibular growth restrictions and retracted proclined anterior teeth.
- Phase II treatment with premolar extractions improved the soft tissue profile and established functional occlusion.
- After 25 months, the patient showed significant improvement in dentition alignment and facial aesthetics.

## Abstract

Angle Class II division 1 malocclusion is a type of malocclusion that significantly impacts the psychological health of adolescents. The key to treating Angle Class II division 1 malocclusion lies in targeting the peak pubertal growth period and fully utilizing the mandible's growth potential. We present the case of a 10-year-old boy diagnosed with Angle Class II division 1 malocclusion, characterized by a severe overjet of 15 mm, managed through a two-phase orthodontic treatment. Phase I of the treatment involved maxillary expansion to eliminate mandibular growth restrictions and retract the proclined anterior teeth. Phase II comprised comprehensive orthodontics with the extraction of four premolars to achieve further anterior retraction, improve the convex soft tissue profile, and establish a harmonious occlusion. After 25 months of this two-phase treatment, significant improvement in the soft tissue profile was observed, with effective anterior retraction, well-aligned dentition, and functional occlusion.