Crossbite

A crossbite is the name given to the situation where one or multiple upper teeth bite on the inside of the opposing lower teeth. Normally, the upper teeth should fit outside the lower teeth like the lid on a box. Crossbites can affect the front teeth (“anterior crossbites”) or the back/side teeth (“posterior crossbites”). Anterior crossbites can result in gum recession around the lower front affected teeth as the upper teeth push the lower teeth forward out of their supporting gum.