I have been seeing Dr. Keropian and have been fitted with two versions of his oral appliance. The current version is a lower jaw-fitted with tongue depressor device and does not stop my snoring. I used it for one nite and felt exhausted the next day and went back to the old device and back on my CPAP. It has been over 18 months of trial and error and with each adjustment, it seem to work ok for a short period, then I would lapse back. It seemed the device would work for a while, then my body would figure it out and defeat it.
Also I am leary about how he tests, and does his scans. The echo always shows an improvement after an adjustment. His CET scans are done sitting upright and not showing the airway when in a natural sleeping supine position.
Yeah, the tongue depressor effect can stop the snoring, but the device does not address the posterior part of the tongue as well as the walls of the throat, that may have less tone as we get older.
I wonder what Dr. Lawler has to say about my experience with dental devices.