Quattro users

I have been using the Quattro for about 6 months. I love it, but, recently I have noticed some discomfort in my lower jaw.
My wife thinks it is from the Quattro. Do you think its possible that the lower portion of the mask is very slightly pushing the jaw inward? This is where I keep it the tightest since I am more apt to leak there. I plan to ask my Dentist at the next visit. Any comment from other Quattro users?

I had the same problem with the Quattro, pushing my lower jaw back. As much as I liked every other aspect of the mask, I had to stop using it.
With my jaw being pushed back, it was blocking my airway and my AHI went through the roof. I switched over to the Hans Rudolph mask,and I don't have that problem anymore. It doesn't put pressure on the lower jaw.

Been using the Quattro for a couple of years now and the only problem I have with them is they ride up and wind up resting on my eyes.
They need a chin cup or strap or something.
Other than that they are the best mask I've seen ( but then I've only tried a few ).