I can relate. Because of dry mouth I had to have all of my teeth removed. I am on night oxygen and was on a c-pap for years. They will likely sedate you, unless there are reasons why they can't. They will give you pain medication. If anxiety is a concern, do discuss this with your doctor or dentist. Do you use a nasal cannula with your oxygen? Wearing a mask is doable too. Do discuss with your doctor or dentist too. Even their techs might be able to advise you on these things. I hope that you find some of this helpful. Know that we are always here for you. Janet (COPD Team)