A comparison of sealing capabilities of amalgum, GIC and zinc oxide eugenol cement when used as retro grade filling materials (in vitro study).

Background: The objective of this study was to compare sealing capabilities of different filling materials when used as retrograde filling materials following apiceotomy (to check their sealing abilities as retro filling). In this study apical seal obtained following reverse retrograde root filling with amalgam, was compared with those obtained with, Glassinomer (GIC) and Zinc oxide eugonal (ZnO2E) cement.

Methods: The root canals of 50 extracted single rooted upper anterior human teeth were used in this study.