A discrepancy in the buccolingual relationship of the maxillary and the mandibular teeth, where the upper teeth are in a palatal position in relation to the lower teeth.

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Types of Crossbite:

• Posterior crossbite (unilateral or bilateral)

• Anterior crossbite

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Treatment options for Crossbite with Proligner aligner:

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• Maxillary dento-alveolar expansion and proclination

• Mandibular dento-alveolar constriction and retraction