[piramirra]

So ... the procedures recommended (even after second opinions which I sought to try to find an avoiding procedure) were bone transplant etc and that followed by implants of some kind to which will be attached replacement "teeth"

Implants are probably medical grade steel of some sort.

Here we go-
"Types of Implants in Use Today

Endosteal (in the bone): This is the most commonly used type of implant. The various types include screws, cylinders or blades surgically placed into the jawbone. Each implant holds one or more prosthetic teeth. This type of implant is generally used as an alternative for patients with bridges or removable dentures.

Subperiosteal (on the bone): These are placed on top of the jaw with the metal framework's posts protruding through the gum to hold the prosthesis. These types of implants are used for patients who are unable to wear conventional dentures and who have minimal bone height."

Ref http://www.perio.org/consumer/2m.htm/