The study aimed to assess how mandibular advancement affects the size and collapsibility of the oropharynx in patients with obstructive sleep apnea (OSA).
Sixteen adults with varying severity of OSA participated, using custom silicone devices to maintain a certain jaw position while undergoing imaging to measure changes in oropharyngeal dimensions during wakefulness and sleep.
Results showed that while oropharyngeal areas significantly decreased during sleep, mandibular advancement improved dimensions and reduced collapsibility, particularly in the retropalatal and retroglossal regions.