How are oral appliances (OAs) designed for the treatment of obstructive sleep apnea (OSA)?

Updated: Sep 15, 2020
  • Author: Himanshu Wickramasinghe, MD, MBBS; Chief Editor: Zab Mosenifar, MD, FACP, FCCP  more...
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Newer designs have separate upper and lower parts that are attached to each other and that allow for adjustability and jaw mobility. A minimum percentage of protrusion to effectively treat OSA is 6-10 mm or up to 75% of the maximum protrusion the patient is capable of performing upon request at the initial examination. This protrusion advance distance is necessary for the OA to be effective. The more protrusion gained, the lower the AHI at the treatment assessment time point.

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