Favorable Stability of Correction of Posterior Cross-Bite with Conventional Maxillary Expansion

UTHSCSA Dental School CAT Library, 2012

The stability of posterior cross-bite correction is favorable when treated with conventional maxillary expansion.
#1) Petren/2010 35 mixed dentition children with posterior crossbite, 20 mixed dentition chilldren with normal occlusion Radomized Clinical Trial Key results The overall changes during the 4 year study showed that treatment groups were comparable with the control group.
Patients met the following inclusion criteria: mixed dentition (all incisors and first molars in occlusion), posterior cross-bite, no sucking habits or sucking habit discontinued at least one year before the trial, and no previous orthodontic treatment.
Follow up period of three years was adequate for long-term conclusions because almost all subjects had reached complete permanent dentition.
Assessment of transverse occlusions (cross-bite correction) and all study cast measurements were performed by examiners that were unaware of the group to which the patient belonged.
Transverse discrepancies such as a posterior cross-bite is a common malocclusion in the mixed dentition and should be treated early and effectively to prevent negative long-term effects on growth of the patients teeth and jaws.
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