Interceptive orthodontics: The need for early diagnosis and treatment of posterior crossbites

Crossbites are the result of a malocclusion on the transverse plane of the maxilla and are defined as alterations of the correct alignment of the palatal cusps of the upper molars and premolars with the pits of the lower molars and premolars.

Transverse alterations are frequently seen in general dental practices and it is necessary to establish a good differential diagnosis in order to adopt the treatment that will achieve the greatest efficiency and the most stable results possible.

Skeletal constriction, dentoalveolar constriction and dental constriction must therefore be differentiated, as each requires different treatment with different orthodontic appliances.

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This article aims to provide a simple guide to the correct diagnosis of transverse anomalies and to choosing the most suitable orthodontic appliance for each case.

Crossbites are defined as the occlusion between the buccal cusps of the upper molars and premolars and the pits of the lower molars and premolars.

The frequency of crossbites seen in dental clinics varies between 1% and 23%, according to different studies.


Med Oral Patol Oral Cir Bucal
Amparo Castañer Peiro

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