ANNALS OF CLINICAL AND ANALYTICAL MEDICINE, cilt.17, sa.6, ss.582-587, 2026 (ESCI)
Aim: This study aimed to compare the radiopacity of newly developed calcium silicate-based root canal sealers using digital radiography. Methods: The tested materials included AH Plus, AH Plus Bioceramic, NeoSealer Flo, Bioserra, MTA Cem S, and gutta-percha cones. Each material was placed in circular molds (10 +/- 1 mm in diameter, 1 +/- 0.1 mm in height). Samples were positioned on a phosphor plate alongside a 14-step aluminum step wedge. Digital radiographs were obtained at 60 kVp, 7 mA, 0.25 s exposure time, and a 30 cm focal spot-object distance. ImageJ software was used to measure mean gray values, and radiopacity was expressed in millimeters of equivalent aluminum (mm Al). Data were analyzed using Kruskal-Wallis and Bonferroni post hoc tests. Results: AH Plus showed the highest radiopacity (11.43 mm Al), followed by AH Plus Bioceramic (10.06 mm Al), gutta-percha (7.22 mm Al), Bioserra (6.52 mm Al), NeoSealer Flo (4.22 mm Al), and MTA Cem S (3.27 mm Al). AH Plus and AH Plus Bioceramic had significantly higher radiopacity than Bioserra, NeoSealer Flo, and MTA Cem S (p<0.05). The radiopacity of MTA Cem S and NeoSealer Flo was significantly lower than that of other sealers and guttapercha. Conclusion: MTA Cem S showed the lowest radiopacity among the tested materials, except for NeoSealer Flo. In clinical practice, insufficient radiopacity may impair the detection of voids or inadequate fillings, which could compromise treatment success. Therefore, the radiographic properties of bioceramic sealers should be carefully evaluated during material selection.