I never had any luck convincing Cigna or Aetna, don't remember which one I had at the time, to pay for my dentures despite letters from doctors. They were perfectly willing to pay for surgical, rather than dental, removal of the teeth but not one cent for replacement teeth. Said I had to file under dental coverage which has a max of $1800 a year. Teeth are not a medical necessity according to them.

Your points are all valid. Good luck with medicare. See if you can find anything in the writing that says they won't cover this or they only cover it if ...

I find dread the day when I have to go under Medicare having fought some battles with them for my parents.

Good luck and keep fighting.
Eileen