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Comparative evaluation of Cone Beam CT and Micro CT on volumetric distortion artefactin human teeth filled with bioceramic sealers

Journal Contribution - Journal Article

AIM: To assess blooming artifacts caused by root canal sealers in CBCT images compared with those that appeared in micro-CT scan images used as references. MATERIALS AND METHOD: Thirty freshly extracted human mandibular central incisors were used. Root canals were prepared with nickel titanium files with an ISO size 40/0.06 taper and filled with a single cone (40/0.06 taper) and three different sealers. The samples were divided into the following three groups with 10 roots each: (I) AH Plus sealer; (II) Sure Seal Root; and (III) Total BC sealer. Teeth were scanned with the same voxel sizes (0.2 mm) in different CBCT devices and the micro-CT images were acquired as reference images. RESULTS: Significantly different results in terms of blooming artifacts were detected between CBCT and micro-CT images, as well as among the CBCTs images. The canals filled with AH Plus sealer showed more blooming artifacts than those filled with bioceramic sealers (pā€‰<ā€‰0.05). Additionally, the worst blooming artifact was observed when the images were acquired with lower kilovoltage peak. CONCLUSION: The appearance of blooming artifacts is dependent on sealer and CBCT, and their effects are significantly worse than they are in micro-CT images. The differential effect of different sealers and distinct CBCT protocols should be further investigated to enable the use of bioceramic sealers without a significant impact on post-treatment imaging. CLINICAL RELEVANCE: Root canal sealers showed a different extent of blooming artifact in CBCT images. Hence, researchers and clinicians should be aware of these artifacts before conducting endodontic evaluations using CBCT images.
Journal: CLINICAL ORAL INVESTIGATIONS
ISSN: 1432-6981
Issue: 8
Volume: 23
Pages: 3267 - -3273
Publication year:2019
BOF-keylabel:yes
IOF-keylabel:yes
BOF-publication weight:1
CSS-citation score:3
Authors:International
Authors from:Higher Education
Accessibility:Closed