What does “Anterior crossbite” mean?
An anterior crossbite is a reversal of the normal front-to-back relationship of the front teeth, such as when an upper front tooth bites behind a lower front tooth.
Distinguish between some teeth and overall relationships
It may occur in only one or two front teeth or in multiple front teeth. Distinguish between the position and tilt problems of some teeth and the skeletal relationship between the upper and lower jaw. The mere fact that the lower jaw appears forward cannot be considered the same cause.
Check movement when closed
The dentist checks the initial tooth contacts, the usual biting position, and whether the jaw moves forward or sideways during closure. Available space, eruption, and growth stage are also assessed to distinguish dental and skeletal factors.
Approach tailored to growth and scope of problem
The assessment distinguishes whether individual tooth positions can be corrected or whether the jaw relationship needs treatment. Appropriate assessment timing matters during growth; in adults, skeletal differences and the feasible range of tooth movement are considered. The term “anterior crossbite” alone does not determine whether surgery is needed.
Frequently Asked Questions
Does one front tooth in crossbite mean the lower jaw protrudes?
Not necessarily. It may be a problem with the position of the tooth, so the entire molar relationship and jaw bone condition must be checked.
Is this the same as a crossbite of the back teeth?
They have something in common in that the relationship between the top and bottom is reversed, but the parts and direction of evaluation are different. Posterior crossbite mainly looks at left and right width and bite.
Questions to help you understand anterior crossbite
Learn what the term means and how it relates to your dental condition.
- Sufficient understanding
How many front teeth are in crossbite?
Explanation and evidenceDetermine the scope of the problem by dividing the positions of some teeth and the overall dentition/jaw relationship.
American Association of Orthodontists · Glossary of Orthodontic Terms - A choice suited to your condition
Why do we look at growth and movement during closure?
Explanation and evidencePlan the timing of evaluation and treatment by looking at the eruption stage and changes in position during closure.
NHS England Orthodontic Assessment and Referral
