Okay, so I'm not a DENTIST but I do manage a dental practice and assist! I am fairly knowledgable in all things dental-appliance.
Our office makes TAP-3's pretty regularly for patients with mild-moderate apneas. I had one made for myself but with an AHI of 87 (!!!) without therapy it didn't do all that much to help. Other's in the office have sworn success. My CPAP has brought my AHI down to 1-3 most nights sooooo I'll be sticking with that (once I find a mask I actually like...).
Anyway, I thought this was the best place to introduce myself and I guess if anyone has any random questions about dentist-made appliances let me know. I'd be happy to help with what I can!