Normally, maxillary teeth should be 2 mm ahead of the mandibular teeth. Otherwise, anterior cross bite occurs in which the lower teeth are ahead of the upper teeth. This problem should be treated as soon as possible otherwise it will result in protrusion of the mandible, leading to Class III skeletal malformations due to mandibular growth.
The disorder can be easily resolved with a removable plaque if treated at an early age. Anterior cross bite should be treated upon observation otherwise it will lead to the Class III skeletal malocclusion requiring jaw surgery at the age of 18.
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