CPAP mask causing lower front teeth to shift inward

I am 68 years old and have been wearing a CPAP for 7 years. I have tried several masks and needed to use a full face due to mouth breathing. About 10 months ago I changed to the Amara View which is still a full face. After about 6 months, I thought I had receding gums on the lower front teeth. This continued to become more uncomfortable to the point that I felt I could no longer wear the full face. I tried the nasal pillows and had to use the chin up strip, or tape to keep my mouth shut while wearing the mask. The tooth pain had reduced significantly. I went to the dentist this week and was told that the full face mask had been pushing on my teeth, causing them to "erupt, shifting inward" The dentist said that if it stabilizes now that I have changed masks, he recommends to do nothing. But if the shifting continues, I should see an orthodontist for possible braces. I have never worn braces. I did not have the mask too tight. I am a side sleeper, never on my stomach or face. I frequently have attended the AWAKE meetings in my area and have had the mask and machine checked. Has anyone else experienced this issue?

I am also 68 years old, but have only been wearing a CPAP for 6 months. I tend to open my when the pressure from the CPAP gets up, and that causes a loss of air and a high leakage rate when using a nasal mask. I have tried a Mirage Quattro, and AirFit F20 full face mask, but could not tolerate the mask on my face, and the unreliable seal and leakage. So, the short story is that I have not used a full face for any significant time. I have also found that a ResMed AirFit P10 nasal pillow mask best suits me. I also address the air leakage from my mouth with a Breathewear Halo chin strap and paper medical tape on my mouth. I was initially adverse to doing it, but it seems to be the best solution overall, and I plan to continue with the nasal pillows, chin strap, and paper tape on the mouth.

I find it surprising that you have incurred dental damage due to the full face mask. It would suggest you may have been using a pretty significant force to seal the mask. But, your dentist could be right. Obviously something to keep monitoring.

The DreamWear full face is similar to the Amara View but it sits a little differently under the nose and presses on the upper jaw less. It may be worth a look. It does have magnetic clips though, so if you have a pace maker, implanted defibrillator, cochlear implant or any other implanted electrical device you can't use it because the magnetic clips can stuff the device up.