This randomized clinical trial aims to evaluate and compare the effectiveness of the Quad Helix (QH) appliance versus Rapid Maxillary Expanders (RME) in treating posterior cross-bite in Egyptian children during the mixed dentition stage. The study will also assess patient comfort and pain levels associated with each appliance.
The study involves 20 orthodontic patients aged 9-12 years with posterior cross-bite. Group A will receive the Quad Helix appliance, while Group B will receive Rapid Maxillary Expanders. Evaluation will be based on orthodontic study models, clinical photographs, and various radiographs including CBCT. Treatment will continue until complete correction is achieved, followed by a 3-month passive retention period.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
20
It is a fixed orthodontic appliance fabricated using stainless-steel wire and soldered to bands on upper first permanent molars.
It is a fixed expansion device bonded on the upper first permanent molars and pre-molars. Activation is done at a rate of 0.25 mm twice daily (two turns per day)
Faculty of Dental medicine (boys) ,Cairo,Al-Azhar University
Cairo, Cairo Governorate, Egypt
Maxillary Arch Width Changes
Measured on dental castes at the level of inter molar / inter canine width and Cone-beam computed tomography (CBCT) for upper arch
Time frame: Baseline and 6 months
Treatment duration
Time frame: At the time of complete cross-bite correction (average of 6 months)
Moustafa Galal Borham Moustafa Saad, Bachelor of dental Science
CONTACT
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