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Purpose The influence of dual-wavelength lasers Er,Cr:YSGG 2780 nm and diode 940 nm on bond strength of the epoxy resin-based sealer (AH Plus) to the root dentin was evaluated. Methods Thirty-three extracted human mandibular and maxillary straight and single-rooted teeth were sectioned at the cementoenamel junction perpendicular to the long axis. All the teeth were endodontically prepared and cut...