Comparison of linear and volumetric measurements obtained from periodontal defects by using cone beam-CT and micro-CT: an in vitro study

TAYMAN M. A., KAMBUROĞLU K., KÜÇÜK N. Ö., Ates F. S. O., GÜNHAN M.

CLINICAL ORAL INVESTIGATIONS, cilt.23, sa.5, ss.2235-2244, 2019 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 23 Sayı: 5
  • Basım Tarihi: 2019
  • Doi Numarası: 10.1007/s00784-018-2665-x
  • Dergi Adı: CLINICAL ORAL INVESTIGATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2235-2244
  • Anahtar Kelimeler: Cone beam computed tomography, Micro-computed tomography, Volumetric and linear analysis, Periodontal bone defects, Voxel size, VERTICAL ROOT FRACTURES, COMPUTED-TOMOGRAPHY, DIAGNOSTIC-ACCURACY, CBCT-IMAGES, RECONSTRUCTIONS, RELIABILITY, RESORPTION, ACADEMY, TOOTH
  • Ankara Üniversitesi Adresli: Evet

Özet

ObjectivesTo assess linear and volumetric measurement accuracy of periodontal defects (class 2 furcation, fenestration, dehiscence, and three-wall intrabony defect) by using CBCT and micro-CT images obtained at different voxel sizes.Material and methodsWe created 66 periodontal defects in human dry mandibles. Images of teeth with defects were taken by Planmeca Promox 3D Max (CBCT) at voxel sizes of 0.2 and 0.075mm and super-argus PET/CT (micro-CT) at voxel sizes of 0.12 and 0.06mm. All defects were then linearly (depth, width, and height) and volumetrically measured by 3D-DOCTOR software. Differences between voxels were assessed by Wilcoxon signed rank test. Bland-Altman limits of agreement and ICCs were calculated to assess agreement between the methods. Significance was set at p<0.05.ResultsVolumes measured by micro-CT (0.12-0.06mm) were higher than those of CBCT (0.2-0.075mm) measurements regardless of the voxel size. ICC between micro CT and CBCT methods was found to be statistically significant for all types of defects in terms of volume (p<0.001), height (p<0.05), width (p<0.001), and depth measurements (p<0.001).ConclusionCBCT provides useful information regarding linear and volumetric measurement of periodontal defects in vitro.Clinical relevanceSize and volume of periodontal defects may play an important role in the determination of the most appropriate treatment plan and disease prognosis along with outcome assessment.