Comparative evaluation of push-out bond strength of three retrograde filling materials in teeth with root apices resected at 90°: Mineral trioxide aggregate Angelus, Zirconomer, and Bioactive bone cement.

The ANOVA results revealed that the type of retrograde filling material had a highly significant influence ( P < 0.001) on the push-out bond strength of Zirconomer subgroups when compared to Bioactive bone cement and MTA Angelus, and the statistical analysis of data revealed that the push-out bond strength of Zirconomer subgroups was highly significant when compared to Bioactive bone cement and MTA Angelus [ P < 0.001; Table 1 ].

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