Correction of unilateral posterior crossbite through the use of RME and multibracket appliances

Correction of unilateral posterior crossbite through the use of RME and multibracket appliances

Problems in the transverse plane of space are seen primarily as posterior crossbites, which may be due to displacement of teeth relative to their supprting bone (dental crossbite), or to a narrow maxilla or wide mandible (skeletal crossbite). It is important to specify, in the sense of the location of the anatomic abnormality, why the crossbite exists. Where a maxillary expansion may be considered as part of a treatment aiming to coordinate the mazillary and mandibular arches. For thr correction of maxillary skeletal constriction, rapid maxillary expansion procedure (RME) is indicated. In this case report, the evaluation of P-A cephalo-grams before, after RME, and after active treatment will serve as a focus.