Maxillary transverse deficiency is an orthodontic anomaly characterized by the upper and lower dental arches being incompatible due to insufficient width of the maxilla. This condition typically manifests with clinical symptoms such as crossbite, crowding of teeth, and impaired respiratory function. Genetic factors, early primary tooth loss, mouth breathing, thumb sucking, and abnormal swallowing are among the causes of maxillary narrowing. Treatment options vary depending on the patient's age and the degree of suture closure. In pediatric and adolescent patients, rapid (RPE) or slow (SPE) orthodontic expansion can be achieved with palatal expansion appliances. However, in adult patients, due to the less flexible bone structure of the maxilla, methods such as surgically assisted expansion (SARME) or mini-screw-assisted expansion (MARPE) are preferred. Recent studies have shown that MARPE can be effective as a non-surgical alternative in young adults and can provide direct skeletal expansion without damaging the teeth.
Age range
15 Years
Sex
ALL
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Changes in Craniofacial Volumes
Timeframe: Cone-beam computed tomography (CBCT) scans will be obtained from patients in both groups at two specific time points: before the initiation of expansion treatment (T0) and following the 6-month retention period (T1).
Changes in Linear Dimensions of Canals and Ostium
Timeframe: Before expansion (T0) and after 6-month retention (T1).
Changes in Angulation and Septal Deviation
Timeframe: Cone-beam computed tomography (CBCT) scans will be obtained from patients in both groups at two specific time points: before the initiation of expansion treatment (T0) and following the 6-month retention period (T1).