Yes, I have recently gone thru having an exposed jawbone and doing HBO. Honestly its no big deal at all. Its just very time consuming. Im not one to sit around doing nothing, with doing HBO, its a forced rest period so I was pretty antsy. The 2 hours in the chamber I watched TV and slept when I could relax enough. I kept thinking of the million things I had to do instead of wasting 3 hours a day on HBO. Its about 2 hours in the tank and then you have to get checked out before and after plus changing clothes and transportation time too.

The oral surgeon who removed the exposed jawbone did a good job. He easily removed just a few small pieces which were the ones that poked thru my gums. I didnt want to get knocked out for this so he did it with just a little Novocaine. It took him at the most 5 minutes for the whole procedure.

You may need tubes in your ears to do the dives. Thats no big deal either, it can even be sometimes done right in the doctors office.

About trismus.... it is what it is. Even with using the appliance, there really isnt much that can be done about it. I have it also and have tried all kinds of things unsuccessfully. Its just one of those things that go along with OC and all the brutal treatments and after effects we have to adapt to.

Ive done alot of HBO's so please feel free to ask any questions. I will try to guide you thru.