Haytham F. El-Fawal , Medhat A. Qataya And Hayam Y. Hassan,

ABSTRACT
Aim Of The Study: Evaluated The Effect Of Moisture On The Apical Seal Using Dye Extraction Method For Three Resin-based Sealers: 1- Endorez Sealer /EndoRez Points. 2- RealSeal SE Sealer /Resilon Points. 3- AH Plus Sealer / Gutta Percha Points.

Materials and Methods: Seventy Teeth Were Selected Where Ten Teeth Served As Positive And Negative Control Group. The Remaining Teeth Were Divided Into Two Main Groups According To Moisture Condition (Dry, Wet). Each Group Was Subdivided According To The Sealer Type Used Into Three Sub-groups In Which The First Subgroup Were Obturated With EndoRez Sealer, The Second Subgroup By RealSeal SE, The Third Subgroup By AH-Plus Sealer.

Results: The Results Showed That There Was A Significant Difference Between Dry And Wet Condition In Each Sealer (P < 0.05). Also In The Dry Condition There Was A Significant Difference Between Realseal SE And AH- Plus Sealer (P < 0.05) , While There Was No Significant Difference Between The Other Groups (P > 0.05). Conclusion: -Drying Of The Root Canals Prior Obturation Even With Hydrophilic Resin Sealers As Wet Canal Condition Would Represent Extreme Experimental Scenarios That Should Be Avoided In The Clinical Situation. -The RealSeal SE/Resilon Root Canal Obturation System Provide Better Seal Due To The Ability Of Forming Monoblock Obturation.