I finally did a follow-up sleep study from my 2009 maxillo-mandibular advancement surgery for sleep apnea. Here's my 2008 blog post about my last sleep study. Subjectively, I've been saying that the surgery brought my sleep from a 3.5/10 average to a 5.5. The results seem to fit that pretty well.
RDI: 11 -> 10.6 -> 5.3 (all hypnopneas, no apneas).
Min O2 sat: 89% -> 92% -> 91% (avg might be higher, though - it's now about 96%).
Snoring: Yes -> ?? -> No
Sleep architecture is worse, though:
REM: 15% -> 10%
Stage 3/4: 9.5% -> 0.2% (though it varies a lot night-to-night, and my Zeo says I get stage 3 & 4 sleep)
They said hypnopneas were associated w/ mouth breathing, and that I might benefit from "tongue reeducation".
RDI: 11 -> 10.6 -> 5.3 (all hypnopneas, no apneas).
Min O2 sat: 89% -> 92% -> 91% (avg might be higher, though - it's now about 96%).
Snoring: Yes -> ?? -> No
Sleep architecture is worse, though:
REM: 15% -> 10%
Stage 3/4: 9.5% -> 0.2% (though it varies a lot night-to-night, and my Zeo says I get stage 3 & 4 sleep)
They said hypnopneas were associated w/ mouth breathing, and that I might benefit from "tongue reeducation".

Comments
I'm glad things are improved for you.