If four implants can be placed with the appropriate anterior - posterior spread, then the fully edentulous patient can always be restored with fixed reconstructions. Since "always" is a big word; this presentation will show why some erroneously, believe that over-dentures are indicated for lip support, hygiene and esthetics. The basis is structured diagnosis leading to correct treatment planning cumulating in appropriate surgical interventions. Now with the correct foundation, various fixed reconstructions are available. Different prosthetic materials and treatment strategies will be discussed.