Samaa M. Osman, Randa M. El Boghdadi And Geraldine M. Ahmed,

ABSTRACT


Introduction: The Aim Of This Study Was To Evaluate The Effect Of Different Root Canal Irrigants On The Push-out Bond Strength Of Endosequence Root Repair Material (ERRM) Compared To ProRoot White Mineral Trioxide Aggregate (WMTA) When Used As Furcation Perforation Repair Materials. Methods: Eighty Extracted Human Permanent Mandibular Molar Teeth Were Randomly Divided Into Two Experimental Groups (n=40) According To The Type Of Perforation Repair Material. Each Experimental Group Was Then Subdivided Into 5 Subgroups (n=8) According To The Irrigant Used (2.5% Sodium Hypochlorite, 17% Ethylene Diamine Tetraacetic Acid, 2.5% Sodium Hypochlorite Followed By 17% Ethylene Diamine Tetraacetic Acid, 2% Chlorhexidine Gluconate And Distilled Water). All Samples Were Allowed To Set For 48 H And Stored At 37�C With 100% Humidity. After The Experimental Periods, The Specimens Were Submitted To The Push-out Test And The Failure Modes Were Examined Under Scanning Electron Microscope (SEM).

Results: There Was A Non-statistically Significant Difference Between All The Experimental Groups (p<0.05). ERRM Had Higher Mean Push-out Bond Strength When Compared To WMTA. For ERRM, The Statistical Ranking Of Push-out Bond Strength Was As Follows Within The Experimental Subgroups: EDTA > CHX > NaOCl > NaOCl Followed By EDTA > Distilled Water. For WMTA, The Statistical Ranking Of Push-out Bond Strength Was As Follows Within The Experimental Subgroups: EDTA > NaOCl > CHX > NaOCl Followed By EDTA > Distilled Water. Conclusion: It Was Concluded That ERRM Showed A Promising Result As A Furcation Perforation Repair Material Owing To Its Ease�of�manipulation And Unrestricted Working Time. The Different Root Canal Irrigants Did Not Significantly Affect The Push-out Bond Strength Of Both ERRM And MTA.