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This term is used to define an abnormal situation when the teeth
are held together. In a normal mouth, the upper teeth lie just
outside the lower teeth when the patient closes her mouth. In a
crossbite situation, the lower tooth or teeth lie outside or in
the same vertical line as the upper ones. Also called a REVERSE
HORIZONTAL OVERLAP. Crossbites may occur in one or just a few teeth, or in a row of teeth at the side of the mouth. They may indicate an underlying problem such as a discrepancy between the jaw size, or a habit like thumb-sucking which needs treatment. |
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