Investigation on the frequency of streak artifacts resulted from different sealers in cone-beam computed tomography images


Submitted: 17 April 2021
Accepted: 24 July 2021
Published: 4 October 2021
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Aim: This ex-vivo study aimed to investigate streaking artifacts produced by three different sealers to prevent false-positive diagnosis of vertical root fractures (VRF) in clinical settings using cone-beam computed tomography (CBCT).

Materials and Methods: The present experimental study included 60 mandibular teeth, single-rooted premolars prepared using a Protaper F3 file and randomly classified into 4 groups, which were obturated using gutta-percha F3 cones alone (control group) or with one of the sealers: MTA Fillapex (FA), Sealapex, and AH26. The teeth underwent CBCT scan with a 5×8 cm field of view (FOV), and the images were qualitatively evaluated in axial sections by two observers and were coded as follows: Code 1: absence of dark streaks, Code 2: slight dark streaks, Code 3: pronounced dark streaks not extending to the root surface, Code 4: dark streaks extending to the root surface, resembling a fracture.

Data were analyzed using SPSS software version 20.chi-square test was used for artifact frequency comparison at P≤0.05 level of significance.

Result: According to both observers, there was no significant inter-group difference in artifact frequency (P>0.05), while Code 3 was the most common artifact observed in all groups.

Conclusions: Dark streaks not extending to the root surface (code 3) were the most common artifact in the teeth obturated using gutta-percha cones alone or with sealers MTA Fillapex (FA), Sealapex, and AH26.


Vida Maserrat, Dapartment of Radiology, Faculty of Dentistry, Zahedan University of Medical Science, Zahedan

Assistant Professor

Heshmat Allah Ebrahimi Shahraki, Dapartment of Endodontic, Faculty of Dentistry, Zahedan University of Medical Science, Zahedan

Assistant Professor of Endodontic

Maryam Dalaei Moghadam, Department of Endodontic, Faculty of Dentistry, Zahedan University of Medical Science, Zahedan

Post graduate endodontics student

Forough Khodadadnejad, Dapartment of Endodontic, Faculty of Dentistry, Arak University of Medical Science, Arak

Assistant Professor of Endodontic

Supporting Agencies

Research Deputy of Zahedan University of Medical Sciences

Maserrat, V., Ebrahimi Shahraki, H. A., Dalaei Moghadam, M., Khodadadnejad, F., & Jami Al Ahmadi, H. (2021). Investigation on the frequency of streak artifacts resulted from different sealers in cone-beam computed tomography images. Giornale Italiano Di Endodonzia, 35(2). https://doi.org/10.32067/GIE.2021.35.02.37

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