**6. Prosthodontic indications and advantages for implant supported overdenture in completely edentulous patients**

A large number of completely edentulous patients wearing conventional complete dentures are dissatisfied with their prosthodontic restorations [48]. Therefore, implant-retained overdentures were introduced to fulfill a need for maximum support

#### **Figure 2.**

*Three-dimensional measurement of maxillary bone in completely edentulous patient. Notice the extreme resorption of the whole maxillary residual arch.*
