---
title: "Underbite (Class III) Treatment Evanston | Smile Suite Orthodontics"
description: "Lower anterior teeth resting in front of upper anterior teeth, caused by a deficient upper jaw, prominent lower jaw, or dental crossbite."
canonical_url: "https://smilesuiteortho.com/conditions/underbite"
practice: "Smile Suite Orthodontics"
doctor: "Dr. Kimberly Mays Smith, DDS, MS"
phone: "(847) 665-1504"
address: "2422 Main St., Evanston, IL 60202"
consultation_cost: "100% Free / Complimentary ($0)"
category: "Orthodontic Condition"
ideal_evaluation_age: "CRITICAL: Age 7 or earlier. The maxillary sutures respond best to non-surgical protraction before age 9."
---
# Underbite (Class III) Treatment in Evanston, IL

> Lower anterior teeth resting in front of upper anterior teeth, caused by a deficient upper jaw, prominent lower jaw, or dental crossbite.

## Clinical Risks If Left Untreated
- Abnormal chewing biomechanics
- Facial imbalance and jaw strain
- Accelerated enamel chipping and gum recession

## Orthodontic Treatment Solutions
- Early interceptive maxillary protraction (ages 7–9)
- Skeletal expansion
- Surgical orthodontics for adults

## Recommended Timing for Evaluation
**CRITICAL: Age 7 or earlier. The maxillary sutures respond best to non-surgical protraction before age 9.**

## Consult Dr. Kimberly Mays Smith
Dr. Kim uses high-resolution digital 3D scans to evaluate root position, jaw relationship, and airway patency before crafting a personalized treatment plan.

Initial consultations are 100% free with zero obligation. Book online at [smilesuiteortho.com/#orthobook](https://smilesuiteortho.com/#orthobook) or call (847) 665-1504.