title: Evaluation of dental panoramic radiographic findings in edentulous jaws: A retrospective study of 743 patients "Radiographic features in edentulous jaws".
abstract: OBJECTIVE
  The aim of this study was to determine the frequency of significant panoramic radiographic findings and eventual treatment requirements before conventional or implant supported prosthetic treatment in asymptomatic edentulous patients.
  
  
  METHODS
  A total of 743 asymptomatic edentulous patients were retrospectively evaluated using a digital panoramic system. We analyzed the radiographic findings, including impacted teeth, retained root fragments, foreign bodies, severe atrophy of the posterior maxillary alveolar bone, mucous retention cysts, soft tissue calcifications and radiopaque-radiolucent conditions.
  
  
  RESULTS
  Four-hundred-eighty-seven (65.6%) patients had no radiographic finding. A total of 331 radiographic findings were detected in 256 (34%) patients. In 52.9% (n=175) of these conditions, surgical treatment was required before application of implant-supported fixed prosthesis. However, before application of conventional removable prosthesis surgical treatment was required for 6% (n=20) of these conditions.
  
  
  CONCLUSIONS
  The edentulous patients who will have implant placement for implant-supported fixed prosthesis can frequently require additional surgical procedures to eliminate pathological conditions.
authors.affiliation: Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Istanbul University, Istanbul, Turkey.
authors.forename: Taha Emre
authors.initials: TE
authors.lastname: Kose
authors.affiliation: Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Bezmialem Vakif University, Istanbul, Turkey.
authors.forename: Nihat
authors.initials: N
authors.lastname: Demirtas
authors.affiliation: Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Istanbul University, Istanbul, Turkey.
authors.forename: Hulya
authors.initials: H
authors.lastname: Cakir Karabas
authors.affiliation: Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Istanbul University, Istanbul, Turkey.
authors.forename: Ilknur
authors.initials: I
authors.lastname: Ozcan
keywords: Diagnosis; Edentulous patient; Panoramic radiography; Treatment planning