u/Delicious-Slip9645

I am an annuitant attempting to use MetLife High Option for a dental implant from an in-network provider. I need a D7952, Sinus augmentation-vertical that is “Not a covered expense.” Does anyone know if this procedure is ever covered by any type of insurance or if it’s typically all out-of-pocket? (I also have Medicare Part B & Blue Cross Blue Shield Basic)

And do these costs look about right for out-of-pocket costs for a dental implant?