title: Implant Supported Fixed Restorations versus Implant Supported Removable Overdentures: A Systematic Review.
abstract: OBJECTIVE
  The aim of this study is to systematically evaluate and compare implant retained fixed restoration versus implant retained over denture.
  
  
  METHODS
  Search was made in 2 databases including PubMed and PubMed Central. Title and abstract were screened to select studies comparing implant retained fixed restorations versus implant retained removable overdentures. Articles which did not follow the inclusion criteria were excluded. Included papers were then read carefully for a second stage filter, this was followed by manual searching of bibliography of selected articles.
  
  
  RESULTS
  The search resulted in 5 included papers. One study evaluated the masticatory function, while the other 4 evaluated the patient satisfaction. Two of them used Visual Analogue Scale (VAS) as a measurement tool, while the other two used VAS and Categorical Scales (CAT). Stability, ability to chew, ability to clean, ability to speak and esthetics were the main outcomes of the 4 included papers.
  
  
  CONCLUSIONS
  Conflicting results was observed between the fixed and removable restorations.
authors.affiliation: Cairo University, Faculty of Oral and Dental Medicine, Periodontology, Cairo, Egypt.
authors.forename: Khaled
authors.initials: K
authors.lastname: Selim
authors.affiliation: Cairo University, Faculty of Oral and Dental Medicine, Oral and Maxillofacial Surgery, Cairo, Egypt.
authors.forename: Sherif
authors.initials: S
authors.lastname: Ali
authors.affiliation: Cairo University, Faculty of Oral and Dental Medicine, Periodontology, Cairo, Egypt.
authors.forename: Ahmed
authors.initials: A
authors.lastname: Reda
keywords: all on four; fixed restoration; implant supported restorations; removable over denture; systematic review