Home / Overbite and Underbite
Victoria Orthodontics Guide

Overbite and Underbite

How front-to-back and vertical bite relationships differ and why that distinction matters.

Smiling adult man with straight teeth — Overbite and Underbite for Greater Victoria BC

Overbite and overjet are different

Overbite describes vertical overlap of the front teeth; overjet describes how far the upper front teeth project horizontally. Patients often use the words interchangeably.

An underbite can involve teeth, jaws or both

The lower teeth may sit ahead because of dental position, skeletal relationships or a combination. That distinction affects treatment options and timing.

Growth changes the discussion for younger patients

Jaw growth can influence bite correction. A plan for a child may differ substantially from treatment for an adult with the same visible relationship.

Severity is not judged from a selfie

Photographs can show a pattern but not the full occlusion or skeletal relationship. Examination and appropriate records are needed for diagnosis.

Questions to take to a consultation

  • What is the diagnosis and treatment objective?
  • Who will personally diagnose, plan and supervise treatment?
  • What reasonable alternatives exist?
  • What is included in the total fee, including refinements and retainers?
  • How often are in-person visits expected?
Last reviewed: September 5, 2026

Sources and verification

Primary and professional references used to review this page. External information can change; verify current provider and regulatory details at the publisher.