Khalil M.M.Abdelrahman M.H.El-Mallah S.Department of Dental BiomaterialsFaculty of DentistryFayoum UniversityEgypt; Department of Dental BiomaterialsFaculty of DentistryModern Science and Arts UniversityCairoEgypt; Department of EndodonticsFaculty of DentistryFayoum UniversityEgypt2020-01-092020-01-0920191644387Xhttps://doi.org/10.17219/dmp/105626PubMed ID : 31274254https://t.ly/W5578ScopusBackground. Endodontic sealers are essential for sealing gutta-percha to the dentin walls. They help to ensure that the canal remains free of microorganisms which might lead to infection. In order to perform their intended function, the sealers should properly adhere to the dentin walls and remain insoluble when set in the canal. Objectives. The purpose of this study was to evaluate the bond strength and solubility of a novel polydimethylsiloxane-gutta-percha calcium silicate-containing root canal sealer (GuttaFlow� bioseal) and compare it with the zinc oxide and eugenol sealer (Zical�). Material and methods. The endodontic sealers used in this study were GuttaFlow bioseal and Zical. The bond strength was assessed using push-out bond strength test in 3 root segments: coronal, middle and apical. The solubility was tested according to the American National Standards Institute/American Dental Association (ANSI/ADA) specification No. 57 at 3 different time intervals: 1, 7 and 14 days. Results. The push-out bond strength in all root segments was significantly higher in Zical compared to GuttaFlow bioseal. The solubility was significantly higher on day 1 and 7 in Zical compared to GuttaFlow bioseal, and on day 14, the difference between them was not significant. Conclusions. Within the limitations of this study, the endodontic sealer GuttaFlow bioseal showed low bond strength values compared to Zical. The solubility of the set GuttaFlow bioseal and Zical were both within the recommended ANSI/ADA levels. � 2019 by Wroclaw Medical University.EnglishZincHepatitis CGenotype 4And Egypt introductionCalcium silicate-con-taining sealerGuttaFlow biosealPolydimethylsiloxane-guttapercha sealerPush-out bond strengthSolubilitycalcium silicatedimeticonegutta percharoot canal filling materialzinc oxide eugenolcalcium derivativecalcium silicatedimeticoneepoxy resingutta percharoot canal filling materialsilicateArticlebond strengthdental cariesdental parametersdental restorationdentinhumanhumiditytooth cementumtooth root canaldental pulp cavitysolubilityUnited StatesCalcium CompoundsDental Pulp CavityDimethylpolysiloxanesEpoxy ResinsGutta-PerchaRoot Canal Filling MaterialsSilicatesSolubilityUnited StatesArticlehttps://doi.org/10.17219/dmp/105626PubMed ID : 31274254