title: Definition, classification and retrospective analysis of photostimulable phosphor image artefacts and errors in intraoral dental radiography.
abstract: OBJECTIVE
  To detect and determine image error and artefact types in intraoral radiographs obtained with photostimulable phosphor (PSP) technology, place them in an appropriate classification and retrospectively analyze the PSP-specific image errors and artefacts. The causes and solutions of PSP-specific errors and artefacts have also been discussed.
  
  
  METHODS
  The radiographic database of Ondokuz Mayis University, Faculty of Dentistry, Department of Dentomaxillofacial Radiology, was used for this study. Different types of image errors and artefacts observed on intraoral radiographs during 2014-15 were detected and defined. A total of 2100 intraoral radiographs were individually evaluated for the distribution of PSP-specific image artefacts.
  
  
  RESULTS
  There were 34 image error and artefact types detected and classified into 4 groups according to the causative factors. The most common PSP-specific image artefacts were found in fading with a ratio of 44.1% for the ambient light-related group, peeling of the plate borders with a ratio of 53.4% for the PSP plate-related group and straight line with a ratio of 42.2% for the scanner-related group.
  
  
  CONCLUSIONS
  The determination and definition of the image errors and artefacts with clarification of their causes and solutions are important for the improvement of radiographic quality and the reduction of the retake ratio.
authors.affiliation: 1 Department of Dentomaxillofacial Radiology, Oral and Dental Health Hospital, Samsun, Turkey.
authors.forename: Armağan
authors.initials: A
authors.lastname: Çalışkan
authors.affiliation: 2 Department of Dentomaxillofacial Radiology, Faculty of Dentistry; Ondokuz Mayis University, Samsun, Turkey.
authors.forename: A Pinar
authors.initials: AP
authors.lastname: Sumer
mesh_terms: D016477:Artifacts; D003951:Diagnostic Errors; D049408:Luminescent Agents; D011856:Radiographic Image Enhancement / Q000379:methods; D011861:Radiography, Dental / Q000379:methods; D012189:Retrospective Studies
chemical_list: D049408:Luminescent Agents