The Retrievability of Calcium Silicate-Based Sealer during Retreatment and the Effectiveness of Additional Passive Ultrasonic Irrigation: A Microcomputed Tomographic Study

Figure 2

Micro-CT reconstructed images of the remaining filling materials. Blue color indicates the remaining filling materials in the canal without isthmus, and orange indicates the remaining filling materials in the canal with isthmus: (a) AH Plus group; (b) EndoSeal MTA group; (c) EndoSeal MTA + PUI group.

(a)

(b)

(c)