EVALUATION AND COMPARISON OF THE TENSILE BOND STRENGTH OF TWO DIFFERENT LUTING AGENTS ON AN ENDODONTIC FIBER POST AFTER TWO DIFFERENT SURFACE TREATMENTS - AN IN VITRO STUDY

Purpose:To evaluate and compare tensile bond strength of two different luting agents on an endodontic fiber post after two different surface treatments. Methodology: 60 mandibular first premolar freshly extracted teeth were used. The root canals were prepared using a step-back technique and obturated. The roots were divided into 2 experimental groups based on the luting cements (Rely X U200 &Calibra) and further divided into 3 subgroups according to surface treatments used (n=10, subgroups are A- control, B- Laser, C- Sandblasting. After post cementation the specimens were cut in to three 2-mm-thick segments (1 apical, 1 middle, and 1 cervical) were prepared. The tensile bond strength was measured using a universal testing machine. The data was analysed using the independent t test and one way ANOVA test followed by Post Hoc Tukey?s test. Conclusion: Sandblasting of glass fiber post provided higher tensile bond strength values for Calibra cement hence it can be recommended as a surface treatment method suitable for glass fiber post and Calibra is the cement of choice.