Overdenture (OD) is applied in removable prosthodontics also for the prevention of the reduction of edentulous alveolar ridge. The features of various restorative materials are to be respected in planning for the filling of cavities of abutment teeth. Concerning longevity of restoration, glass ionomer cements are promised to be the most acceptable choice due to its fluoride dynamics and resistance to wet condition. Implant retained OD by additional remained restored teeth are good combination according to the literature data. Frequent controls in terms of six months are wishful because of posibility of secondary caries and periodontal pathology when preventive measurements (fluoridation, scaling) might be processed.