A Mandibular Advancement Device (MAD) or Oral Appliance Therapy (OAT) can be an effective treatment for obstructive sleep apnea. The appliance is like a double night-guard that postures the lower jaw forward. The pros are that is doesn’t strap to your face, cause claustrophobia, or dry your mouth. The cons are that it can cause jaw soreness and can change your bite in time. An oral appliance is not the treatment of choice for pediatric sleep apnea or severe sleep apnea, or is the restriction in the airway is not at the tongue level. An sleep appliance can be used in conjunction with a CPAP. It is made custom made for you after having an exam, treatment plan, scans and measurements from your dentist. Follow-up appointments are critical to ensure long term success an to evaluate for side effects.