If you don't want to have anything "removable" in your mouth, then the obvious answer is to have implant supported fixed bridges. Get a couple opinions from implant dentists, as not all general dentists are trained and capable of doing implant placements and fixed bridgework that goes onto the implants. However, be forewarned, implants properly done are not cheap. Also, remember, there is no free lunch and you get what you pay for. I say this because I recently had a new patient enter my practice who had gone to "a clinic" and had seven implants placed, and two of them had come out and two more were unrestorable and also needed to be redone. My advice, stay away from dentists who advertise "bargain implants" and one stop dentistry. Your other options include the full denture, partial dentures or overdentures (dentures that rest on or are connected to implants for more support)..