A crossbite may also be referred to as a reverse bite or bad bite. It is a type of malocclusion that can affect a single tooth or multiple teeth. The most common type of crossbite involves upper teeth that are situated behind the lower teeth when the mouth is closed or when biting down. It may occur when the lower and upper jaws are not properly aligned. It may also be due to excessive crowding of the teeth, resulting in poor alignment.

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