Not really, yet! I did 30 HBO treatments for a tooth infection, necrosis. I will need additional HBO when I have my teeth removed, which is not scheduled yet. HBO, after the first day is ok, when you get used to after being locked in the chamber for an hour or two. The dynasplint is similar to the therabyte, I did old school, with the wooden tongue depressors, but that got old. Studies show better outcome with these devises, and when used the first months after treatment. I have to start again, if you really can, since I can only open my mouth one finger thickness. Good luck with everything.