Shahed University

Quantitative Comparison of the Artifact of Six Cone-Beam Computed Tomography Systems in Endodontically Treated Teeth with Gutta Percha and AH26

Shahriyar Shahab | Zeynab Azizi | Hoseyn Mosaferi | Haniyeh Nazarinia | mohammad Saleh Parsaee | Mohammad Sheikh Ali
URL :   http://research.shahed.ac.ir/WSR/WebPages/Report/PaperView.aspx?PaperID=148161
Date :  2020/12/26
Publish in :    Bioscience Biotechnology Research Communications
DOI :  https://doi.org/doi.org/10.21786/bbrc/13.3/57
Link :  http://dx.doi.org/doi.org/10.21786/bbrc/13.3/57
Keywords : ArTIfACT, CONE¬ BEAm COmPuTED TOmOGrAPHy, SEAlEr, VOxEl SIzE

Abstract :
Artifacts are among the most important limitations of cone-beam computed tomography (CBCT). In different CBCT systems, the exposure options or the machine geometry might affect the diagnostic validity. This study aimed to compare the artifact rate in 6 CBCT systems in endodontically treated teeth with AH26. The effects of different voxel sizes on the artifacts in one of CBCT units was evaluated too.Twenty single-rooted teeth were randomly divided into 2 groups (n=10) and were instrumented up to the apical size of 25. The control group was left empty with no obturation, but case group were filled with gutta percha and AH26. Both groups were scanned by using 6 CBCT systems including NewTom VG, Planmeca, Kodak, Soredex, Vatech, NewTom Giano. CBCT scanning was performed via Vatech with 3 different voxel sizes (0.125, 0.2, and 0.3 mm3.) OnDemand 3D software was used for analysis. Any deviation from the control group gray values was considered as artifact. The maximum, minimum, average and standard deviation of grey value in 4 points were measured. One-way ANOVA, independent t-test and Tukey’s HSD post hoc test were used for statistical analyses of the data (P0.05). Significant artifact was observed in Soredex, Planmeca, Kodak, and NewTom VG. While, NewTom Giano and Vatech showed no significant artifact. (P0.05). artifact’s presence was significant in images obtained with 0.3 mm3 voxel size, followed by 0.2 and 0.125 mm3, respectively. Different CBCT units have variations in artifacts. Even in units with fewer artifacts, it is critical to use a mode with small voxel size to reduce the artifacts.