Dr. Jojo

TOPIC - MSE for Pediatric & Adult Dental Sleep Medicine 40 MIN The upper Jaw carries a unique anatomic position as it separates nasal and oral cavities. Broad and U shaped pal ate is associated with wider nasal floor allowing for better nasal breathing . Patients with maxillary deficiency often present with high arched V shaped palate which inhibit proper nasal breathi ng by creating a narrow nasal floor and cavity which leads to compromised day time and night time breathing due to anatomic upper airway constriction and soft tissue obstructions. Anatomically the maxilla and the soft palate that hangs off the back of it and the 1nand ible with the tongue attached to it creat,e the anterior boundaries of the airway. Studies have shows that retropositen of the maxilla or mandible narrows the airway and create the risk of obstruction in the airway. (90% of OSAS in adult’s patients are either because of the structural alteration of the maxilla or mandible) The nose is the most resistive element of the airway that accounts for 50% of the total airway resistance nasal obstruction leads to compensatory oral breathing resulting in increased airway resistance during sleep oral breathing with month opening contributes to tongue retro displacement, upper airway collapse and altered muscle activity. Abnorma l breathing during sleep is associated with a combination of intermita nt Oxygen deprivation and sleep frag1nentation . The goal of maxi llary expansion is to enlarge the nasal airway with separation of the mid palatal suture resulting inreduction of nasal resistance.