posterior crossbite

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Related to posterior crossbite: anterior crossbite

pos·te·ri·or cross·bite

(pos-tērē-ŏr krawsbīt)
Abnormal placement in which the posterior teeth occlude in an abnormal buccolingual relationship with the opposing teeth.


a form of malocclusion in which the mandibular teeth are cranial to the maxillary teeth.

anterior crossbite
see reverse scissor bite.
posterior crossbite
the mandible is wider than the maxilla in the area of the carnassial teeth.



anterior crossbite
mandibular incisors are anterior to the maxillary incisors.
posterior crossbite
mandibular premolars or molars are buccal to their opposing teeth.
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References in periodicals archive ?
for which the same recording method was used, show similar rates of the following occlusal characteristics for US adolescents: posterior crossbite, overjet, overbite, open bite, and maxillary midline diastema (Table 4) (17).
Scissor bite and anterior crossbite were not registered in any of the examined cases, while posterior crossbite was found to be higher in the study group (23.
Posterior crossbite is believed to be transferred from the deciduous to the permanent dentition and can have long-term effects on the growth and development of the teeth and jaws.
This normal situation is altered when there is a posterior crossbite.
Posterior crossbite is reported to occur in 8-22% of the malocclusions and most commonly unilateral crossbite.
Rapid maxillary expansion (RME) was popularized by Andrew Haas and it has been widely used for the treatment of maxillary transverse deficiency with or without posterior crossbite (Kartalian, Gohl, Adamian, & Enciso, 2010).
An evaluation of mandibular asymmetry in adults with unilateral posterior crossbite.
Sucking habits, limited mouth opening, tooth wear facets, facial type and posterior crossbite achieved p-values of [less than or equal to] 0.

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