Treatment for OSA and Snoring COAT™ (Continuous Open Airway Therapy) SomnoDent is a custom-made oral appliance for the treatment of mild to moderate obstructive sleep apnea (OSA). SomnoDent is worn during sleep to provide Continuous Open Airway Therapy (COAT) by moving the lower jaw forward while you sleep to expand the space behind your tongue. … Continue reading OSA and anti-snoring treatment