Posterior cross-bite

Posterior cross-bite is a problem that requires IMMEDIATE treatment.

Normally the upper arch is wider than the lower one and your teeth should be outside the lower ones on both sides. If the opposite occurs and the upper molars and premolars are inside, either on one side or on both sides, we speak of a posterior cross-bite.

When the patient is growing, it should be treated immediately because it tends to perpetuate the narrowing of the upper arch and above all, and that is the main problem, to create a permanent deviation of the jaw that the patient expresses on his face and is appreciated a deviated chin.

That is why the American Orthodontic Association (AAO) recommends a first orthodontic check-up at six-seven years of age!

This case shows how the right posterior cross-bite is corrected in a first (interceptive) treatment, when the patient still has baby teeth and how it ends up after the final treatment with braces.