الفهرس 
Techniques for Gutta percha RemovalOnly 14 pages are availabe for public view
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Abstract
to evaluate push-out bond strength of two sealers after retreatment using three different organic solvents. Material and methods: eighty sound freshly extracted lower premolars were selected, stored in saline, their crowns were removed to get nearly 13±1mm root length. Preparation of the canals was done using ProTaper system to F3 (#30/0.09). Filling of 70 canals with gutta percha /AH-plus sealer was done while the remaining ten roots were filled with gutta percha / MTA fillapex sealer. Removal of the primary root canal filling in sixty root canal which filled with AH-plus sealer was done using ProTaper universal retreatment system and one of the tested solvents.