Due to gum disease, when you lose most of your teeth or at times all of them, your Dentist may suggest total extraction followed by a complete denture. When the bone loss is so severe, it is difficult to retain the dentures in place. It is always better to have a fixed dentition, to regain the chewing ability and aesthetics. You can forget about your 3rd dentition (denture) being in a glass of water every night. Fixed option, like “All on Four” give strong anchorage into the bone to retain a fixed prosthesis. Though it needs periodic maintenance and care, it can function similar to a natural dentition.