It’s not that it won’t “work” for severe cases. It’s that it will most likely not reduce events to the desired level.
It’s been a couple years since I have made someone one of these appliance so I’m by no means an expert on this matter but if I remember correctly the goal was to get below 7 events per hour for the treatment to be “successful.” If they are having 100 events per hour and an oral appliance drops that number to 20-25, it has helped but the goal is to get it lower. Ideally you would have a sleep study with the appliance to test its effectiveness.
I still think it is worth looking into if hauling a cpap is not an option.
It’s been a couple years since I have made someone one of these appliance so I’m by no means an expert on this matter but if I remember correctly the goal was to get below 7 events per hour for the treatment to be “successful.” If they are having 100 events per hour and an oral appliance drops that number to 20-25, it has helped but the goal is to get it lower. Ideally you would have a sleep study with the appliance to test its effectiveness.
I still think it is worth looking into if hauling a cpap is not an option.