Comparison of Radiopacity of Six Endodontic Sealers

Optimal radiopacity is one of the properties required for a root canal sealer that helps the distinction between the sealer and surrounding anatomic structures and evaluation of the quality of root filling. So, the purpose of this study was to evaluate the radiopacity of six root canal sealers at different focal distances. Materials and Methods: In this in vitro study, six endodontic sealers (ADSEAL, AH26, AH plus, Dorifill, MTA fillapex, and ZOE), were prepared and placed in a mold with 1mm thickness and 10mm diameter. The specimens were positioned alongside an aluminum step wedge on a digital detector (occlusal size 76×57 mm). Radiographic imaging was performed at 15 and 30cm focal distances and radiopacity of each specimen was measured.One-way ANOVA and paired t-test were used and p<0.05 was considered significant.