(08-21-2014, 11:59 AM)PaulaO2 Wrote: What chin straps do folks use for flapping lips? My mouth stays shut, but my cheeks are puffing out and air escapes between my lips.
Keeping the teeth together makes it easier to keep the tongue in place against the roof of the mouth keeping air out of your mouth. The standard advice is to press the tongue against the roof of the mouth, but not everyone can make that happen.
Ideally, the back of your tongue will seal off your mouth and prevent air from escaping. Not everyone can make this work. With my chinstrap properly adjusted, I can usually keep my tongue in the right place, and I don't end up with any air pressure in the mouth.
You might try using a non-adhesive ACE bandage over your lips looped around the back of your head. It might keep your lips from flapping outward, even though it won't keep them together without another chin strap. The Ace bandage is porous enough to breathe through if necessary.