title: Pre-clinical evaluation of a new dental panoramic radiographic system based on tomosynthesis method.
abstract: OBJECTIVE
  The purpose of the study was to compare the image generated by a classic panoramic machine equipped with a cadmium telluride sensor capable of digital tomosynthesis and special software with images produced by other popular panoramic X-ray machines using a charge-coupled device and native software for image capture.
  
  
  METHODS
  Panoramic images were made using a phantom of a human skull on Planmeca ProMax, Planmeca EC Proline, Kodak 8000 and PC-1000. With the last machine we used the PanoACT® software to adjust the entire arch and to adjust the image in selected regions of interest (ROIs). Ten viewers evaluated the images and provided the viewer data. ANOVA for repeated measures was used to compare the means by pairwise comparisons of means.
  
  
  RESULTS
  The image of the entire arch adjusted by the PanoACT® software was statistically superior to the images produced by other machines. The images generated and individually adjusted by PanoACT® were statistically superior to all other images.
  
  
  CONCLUSIONS
  The image generated by the cadmium telluride sensor has great potential and can be processed to create superior images to those taken with other machines. Furthermore, the ROI individual images enhanced by the PanoACT® were superior to the entire arch adjusted by the same software.
authors.affiliation: Department of Dental Diagnostic Science, Health Science Center at San Antonio, University of Texas, San Antonio, Texas, USA. noujeim@uthscsa.edu
authors.forename: M
authors.initials: M
authors.lastname: Noujeim
authors.forename: T
authors.initials: T
authors.lastname: Prihoda
authors.forename: W D
authors.initials: WD
authors.lastname: McDavid
authors.forename: K
authors.initials: K
authors.lastname: Ogawa
authors.forename: T
authors.initials: T
authors.lastname: Yamakawa
authors.forename: K
authors.initials: K
authors.lastname: Seki
authors.forename: T
authors.initials: T
authors.lastname: Okano
authors.forename: T
authors.initials: T
authors.lastname: Sue
authors.forename: R P
authors.initials: RP
authors.lastname: Langlais
mesh_terms: D000704:Analysis of Variance; D019187:Cadmium Compounds; D003387:Cracked Tooth Syndrome / Q000000981:diagnostic imaging; D003786:Dental Pulp Cavity / Q000000981:diagnostic imaging; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000379:methods*; D010513:Periodontal Ligament / Q000000981:diagnostic imaging; D019047:Phantoms, Imaging; D011862:Radiography, Panoramic / Q000295:instrumentation* / Q000379:methods*; D012886:Skull / Q000000981:diagnostic imaging; D012984:Software; D013691:Tellurium; D014057:Tomography, X-Ray Computed; D019227:Tooth Apex / Q000000981:diagnostic imaging; D014963:X-Ray Intensifying Screens
chemical_list: D019187:Cadmium Compounds; D013691:Tellurium; C028337:cadmium telluride