Evaluation of Maxillary Expansion Methods on Nasomaxillary Structures
Recruiting now · Not applicable
Conditions studied: Maxillary Expansion, Maxillary Transverse Deficiency
In brief
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.
Key facts
- Study ID
- NCT07326345
- Run by
- Merve Kulaksız
- People needed
- 30
- Starts
- 2025-09-29
- Expected to finish
- 2026-05-01
- Last updated by the study team
- 2026-01-08
Who can join
Age: 15 and older. Sex: any. Healthy volunteers: not accepted.
You may qualify if…
- Diagnosis of maxillary transverse deficiency.
- Patients aged 15 years and older.
- Presence of unilateral or bilateral crossbite.
You may not qualify if…
- Severe facial deformities or craniofacial syndromes.
- History of previous orthodontic treatment.
- Existing pathology or history of surgery related to the paranasal sinuses, nasolacrimal system, or orbital cavity.
- Inadequate patient cooperation.
- History of trauma, or previous maxillofacial/plastic surgery procedures.
- Clinical signs or symptoms of maxillary sinus pathology (e.g., maxillary sinus cysts, sinusitis).
Where it is running
- Bezmialem Vakif University Faculty of Dentistry, Department of Orthodontics — Istanbul, Fatih, Turkey (Türkiye) (enrolling)
Full record on ClinicalTrials.gov
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