3D Evaluation of Upper Airway Morphological Changes in Growing Patients with Class II Malocclusion Using Sander Bite Jumping Appliance

Class II malocclusion due to mandibular retrognathia is associated with a posterior positioning of the tongue and hyoid bone, reducing oropharyngeal volume. This could be contributing factor development respiratory cardiovascular problems. study evaluates volume variation in 13 patients class undergoing functional orthopedic treatment Sander Bite Jumping Appliance (SBJ). CBCT scans were performed before (T0) approximately after 12.5 months (T1): retropalatal retroglossal quantified mm3 using segmentation software. At T1, increased 2523 ± 2088 mm3, 2258 1717 mm3. Both values statistically significant (p < 0.05). widening airways may allow prevention sleep-disordered breathing, including obstructive sleep apnea syndrome.