Plus/gutta-percha, EndoREZ and RealSeal systems

test of AH Plus/gutta-percha, EndoREZ and RealSeal systems Alaa Abdul MAHDI1, Victoria BOLAÑOS-CARMONA2, Santiago GONZALEZ-LOPEZ3 1PhD student, Department of Stomatology, School of Dentistry, University of Granada, Granada, Spain. 2PhD, MD, Associate Professor, Department of Pediatric Dentistry, School of Dentistry, University of Granada, Granada, Spain. 3PhD, MD, Associate Professor, Department of Operative Dentistry, School of Dentistry, University of Granada, Granada, Spain. Corresponding address: Santiago Gonzalez-Lopez Faculty of Dentistry, Department of Operative Dentistry Colegio Máximo s/n. Campus Universitario de Cartuja, University of Granada E-18071 Granada Spain Phone: 958243803 Fax: + 34 958240908 e-mail: [email protected] O To investigate the bond strength and seal ability produced by AH Plus/guttapercha, EndoREZ and RealSeal systems to root canal dentin. Material and Methods: Sixty extracted single-root human teeth, instrumented manually to size 40, were divided into three groups (n=20) according to the sealer used; G1: AH Plus, G2: EndoREZ, and group was randomly divided into two subgroups according to the tests applied (n=10 for ! "#$ % & ' quantitative evaluation of apical leakage. Four 1-mm-thick slices (cervical and medium level) were obtained from each root sample and a μPush-out test was performed. Failure modes were examined under microscopy at 40x, and a one-way ANOVA was applied to analyze the permeability. Non-parametrical statistics for related (Friedman's and Wilcoxon's rank tests) or unrelated samples (Kruskal-Wallis' and Mann-Whitney's tests) allowed for comparisons of μPush-out strength values among materials at the different levels. Statistical ' + + 3 5 $6 7 & 7 8 & 9 ! < 3 >?"@ BCD +"$ #$% 9 ' ' 3 >I 2=23.93; p<0.001). AH Plus and RealSeal obtained higher bond strength to intraradicular dentin in the medium I 7 < ' + & < 9 global μPush-out bond strength to root canal dentin achieved by AH Plus/gutta-percha, EndoREZ and RealSeal systems.