Program including abstracts as pdf available here

P 27
Title
ARTIFACTS IN CbCT CAuSED by PROSTHETIC INLAyS
Authors
I. ROzyLO-KALINOWSKA 1 , K. SARNA-bOS 2 , T.K. ROzyLO 1 , J. bOROWICz 2
Affiliations
1 Medical University of Lublin, Department of Dental and Maxillofacial Radiology, Lublin,
POLAND, 2 Medical University of Lublin, Department of Prosthetic Dentistry, Lublin, Poland,
Lublin, POLAND
Body
Objectives: CBCT examinations are more and more often applied in dental practice, but the
quality of the obtained scans is affected by artifacts caused by fixed prosthetic appliances. The
aim of the study was to evaluate artifacts caused by prosthetic inlays affecting quality of CBCT
images.
Methods: The material consisted of 17 prosthetic inlays mounted in dental roots embedded in
resin. The samples were examined by means of a large field of view CBCT unit Galileos (Sirona,
Germany). Scanning was performed with 85 kV and 14 mAs. There were examined inlays
made of titanium (9 different types, including pure titanium and alloys, active and passive),
carbon fibers, glass fiber (3 types), steel (2 types), ceramic with zirconium dioxide as well as
epoxy resin with silica fibers enriched with zirconium. The artifacts caused by the inlays were
evaluated subjectively and quantitatively using optic density measurements available in the
dedicated Galaxis software (Sirona, Germany).
Results: The weakest artifacts were produced by glass fiber inlays and carbon fiber inlays.
Streak artifacts were most pronounced in case of steel inlays and ceramic with zirconium
dioxide. Metallic inlays were found to cause also cupping artifacts.
Conclusion: The quality of CBCT images is the best when glass fiber inlays or carbon fiber
inlays are applied.
Keywords
Cone-Beam CT,artifacts,inlays
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