Some studies showed that children with a unilateral posterior crossbite
exhibit unusual chewing patterns when chewing on the affected side and this is characterized by an increased frequency of reverse sequencing.
posterior bilateral crossbite
with skeletal involvement,
(7) evaluated the effects of RME on vocal function in patients with bilateral maxillary crossbite
using the acoustic analysis of the /a/ vowel.
 The temporomandibular joint disorder was significantly associated with occlusal disharmony, posterior crossbite
, malocclusion and extreme cases of overbite and overjet.
It includes parameters of dentofacial anomalies related to the following clinical and aesthetic aspects: the number of visibly absent teeth, anterior crowding, anterior spacing, midline diastema, maxillary anterior misalignment, maxillary anterior horizontal overlap, mandibular anterior horizontal overlap, anterior open bite, antero-posterior molar relation and posterior crossbite
. In general, the DAI index score is analysed by means of the sum of scores of each characteristic evaluated added to a constant value.
On occlusion his teeth showed a class II subdivision right relationship with #16 and #46 in crossbite
. His generalized oral hygiene was poor with calculus deposits and staining (fig-1).
Three-dimensional evaluation of the mandibular third molars' development in unilateral crossbite
patients: A cone beam computed tomography study.
Malocclusion was diagnosed by the Foster and Hamilton Index (21), which consists of four measures: canines' key, overjet, overbite, and posterior crossbite
. The measurement (in millimeters) was performed with teeth in occlusion and the probe parallel to the occlusal plane.
Of the individuals with CLP included in the study, 29% had Type III malocclusion, 23% had crossbite
, 9% had anterior crossbite
, and 14% had posterior crossbite
In addition, PAOO should not be considered as an alternative for surgically assisted palatal expansion in the treatment of severe posterior crossbite
. PAOO is contraindicated in cases where bimaxillary protrusion with a gummy smile, which is benefited by segmental osteotomy.
(22,23) Surprisingly, there are no studies in the literature evaluating the characterisitcs of dental occlusion among non-obese adult patients with OSA, except for reported associations between anterior openbite, posterior crossbite
and lip incompetence, and symptoms of OSA in growing patients.