Didier,
I didn't pose those questions for you to confront her about it, just that knowledge is power and insurance coverage is a multidimensional thing. Your original question concerned the Medicare coverage aspect it. The trimus element is also a consideration. You have to have your ducks lined up when you confront insurance companies.

In all fairness to your mother, it took me an extraordinary committment to daily oral hygiene - and still does. The risk of ORN is for LIFE. It's like the PEG or treatment options - you have to carefully weigh out the risks and benefits of all the choices and make decisions based on that and what is achievable in reality. A relentless support system is an integral component of this.

The front teeth teeth are pretty tough, the back teeth are probably in much worse shape. I sure that Jerry can elaborate more on this.