Aim: The aim of the study was to assess bone resorption in patients with chronic generalized periodontitis according to orthopantomogram (OP) and cone-beam computed tomography (CBCT) and substantiate which of these methods is the most appropriate for use.
Materials And Methods: In order to compare the objectivity of the results of examining the periodontal bone tissue by the above methods (panoramic radiography and computed tomography), we analyzed 26 panoramic radiographs and computed tomograms of the same patients, performed on a PICASSO (3D) computed tomograph by «Vatech».
Results: Comparison of CBCT and OP data in patients with periodontal tissue disease showed a significant difference between the indicators of bone tissue resorption in the mesiodistal direction, and revealed that the volumetric image is significantly objective X-ray picture in periodontal diseases by identifying the state (resorption) of the vestibular and oral cortical plates in any section dentition. At the same time, only according to CBCT data, an objective assessment of bone resorption in the vestibulo-oral direction is likely.
Conclusions: Mesiodistal CT and orthopantomographic data do not match well enough. They allow with high accuracy to identify areas of resorption only from the medial and distal sides. However, the vestibulooral CT projection indicates the bias of a two-dimensional image for obtaining an accurate X-ray picture of the state of the alveolar bone and a complete assessment of bone resorption.
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