This study aims at evaluating the effects of mandibular advancement on pharyngeal airway space and nocturnal breathing in children with skeletal class II division1 malocclusion. Fifty patients will be enrolled in the study divided into control and experimental groups.
The purpose of the present research is not only evaluate the effect of functional appliance on the pharyngeal airway space, but also evaluate its effect on nocturnal breathing of children with skeletal class II.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
50
Functional appliance
Braces
Mansoura University
Al Mansurah, Egypt
Pharyngeal airway volume
CBCT images will be used to measure the pharyngeal airway volume in mm3
Time frame: One year
Nocturnal breathing
Pulse oximeter will be used to measure Oxygen Desaturation Index (ODI) and report the number of 3% and/or 4% desaturations.
Time frame: One year
Maximum expiratory pressure
Oral expiratory peak flow meter will be used to measure the maximum expiratory pressure as cmH2O.
Time frame: One year
Craniofacial changes
Lateral cephalometric images extracted from the CBCT images will be used to measure linear (mm) skeletal, dental and soft tissue changes of maxilla and mandible.
Time frame: One year
Craniofacial changes
Lateral cephalometric images extracted from the CBCT images will be used to measure angular (º) skeletal, dental and soft tissue changes of maxilla and mandible.
Time frame: One year
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