I had perfect teeth until I used a nasal mask. My dentist told me he had seen this before in some of his other patients. The pressure from the mask has pushed my teeth apart and forward. I would not recommend. I love my full face mask.

I have a Remstar Pro C-Flex and for several days I have used not water. Also the numbers (0-5) are no longer displayed when I turn on my machine. Having headaches and dry mouth as a result. Any suggestions???