shear bond strength of glass ionomer root canal sealer to elephant tusk dentine conditioned with common endodontic irrigants

ABSTRACT

The purpose of this in vitro study was to evaluate the shear bond strength of glass ionomer sealer to dentine exposed to common endodontic irrigants in both well and poorly prepared dentine surface. In the methodology four groups of elephant dentine sample were used. Each group was well cleaned and prepared with different irrigants for the effective removal of smear layer. One group was treated with distilled water with smear layer retained. All the dentine used for the experiment was cut in form of disks of about 2.4mm thickness with a hole in the centre and subjected to root canal preparation. All the prepared dentine samples were filled with Ketac-Cem sealer and metal pin was inserted. The shear bond strength of metal pin and sealer was tested using Instron universal testing machine. The observations of bond strength in the four sample groups were analysed statistically through ANOVA test. It was found statistically that shear bond strength with phosphoric acid treated samples was quite higher than the other samples