title: Visibility of lamina dura and periodontal space on periapical radiographs and its comparison with cone beam computed tomography.
abstract: OBJECTIVE
  To retrospectively evaluate the subjective quality of images of cone beam computed tomography and compare with periapical radiographs (PR) to determine whether lamina dura (LD) and periodontal ligament (PDL) space can be detected and reported.
  
  
  METHODS
  Sixty scans for anterior and posterior teeth with PR were included and scored on four point subjective scale. Scores assessed using Wilcoxon Signed rank test with the level of statistical significance P < 0.05.
  
  
  RESULTS
  Maximum number of ties for LD in anteriors was seen in coronal section (16) and in posteriors with sagittal section (17). Assessing PDL space in anteriors, high number of ties was seen with coronal section (25) and sagittal section (21), while for posteriors showed a high number of ties in all sections.
  
  
  CONCLUSIONS
  LD could be observed and reported in coronal section for anteriors and in sagittal section for posteriors and PDL space in all the sections for both anteriors and posteriors.
authors: Department of Oral Medicine and Radiology, Nair Hospital Dental College, Mumbai, Maharashtra, India.
authors: Nimish
authors: N
authors: Prakash
authors: Department of Oral Medicine and Radiology, Nair Hospital Dental College, Mumbai, Maharashtra, India.
authors: Freny R
authors: FR
authors: Karjodkar
authors: Department of Oral Medicine and Radiology, Nair Hospital Dental College, Mumbai, Maharashtra, India.
authors: Kaustubh
authors: K
authors: Sansare
authors: Department of Oral Medicine and Radiology, Nair Hospital Dental College, Mumbai, Maharashtra, India.
authors: Heena V
authors: HV
authors: Sonawane
authors: Department of Oral Medicine and Radiology, Nair Hospital Dental College, Mumbai, Maharashtra, India.
authors: Neha
authors: N
authors: Bansal
authors: Department of Oral Medicine and Radiology, Nair Hospital Dental College, Mumbai, Maharashtra, India.
authors: Reena
authors: R
authors: Arwade
keywords: Cone beam computed tomography; lamina dura; periapical radiographs; periodontal ligament space