Overjet is also known as protrusion. It is where the lower teeth are too far behind the upper front teeth. This can be caused by an improper alignment of the molars (Class II Relationship); a skeletal imbalance of the upper and lower jaw; flared upper incisors; missing lower teeth; or a combination of all the above. In addition, oral habits such as thumb or finger sucking or tongue thrusting can exacerbate the condition.
Overjet should be corrected because it can:
- Prevent proper functioning of the front teeth
- Lead to premature wear
- Make your smile less attractive
Overjet can be orthodontically corrected through growth modification using a functional appliance and/or elastics to reduce the skeletal imbalance or extraction of teeth.