الفهرس 
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Abstract
Conclusion:
On the basis of this study we can conclude that:
1- Either with no thinning resin or after addition of one, two or three DROPs of thinning resin all tested groups showed flow conformed to ANSI/ADA requirement and the addition of two and three DROPs of RealSeal thinning resin increased the flow significantly.
2- Addition of two and three DROPs of RealSeal thinning resin to RealSeal sealer increased the push-out bond strength significantly.
3- Addition of RealSeal thinning resin didn’t affect the apical leakage as there was no statistical significant difference between all groups and the important finding that all groups showed leakage.
4- Both gap free and gap containing areas were presnt in all groups as revealed by SEM.
5- There was strong direct correlation between flow and bond strength of the tested groups.
6- There was non significant correlation between flow and dye penetration and between bond strength and dye penetration.