Effect of Fiber Post-Resin Matrix Composition on Bond Strength of Post-Cement Interface
Table 2
Types of failure mode of different groups investigated.
Type of failure
Description of failure mode
Type 1
Cohesive failure within the post
Type 2
Adhesive failure between post and luting cement with no cement on post surface can be detected. This is considered total adhesive failure between post surface and the luting cement
Type 3
Cohesive failures within the luting cement where the luting cement covers all post surface and the simulated acrylic canal
Type 4
Adhesive failure between the luting cement and the simulated acrylic canal where the luting cement covers all post surface and no luting cement covers the simulated acrylic canal
Type 5
Mixed failure subtype-1 where the luting cement covers 25–50% of the post surface. This is regarded as predominantly adhesive failure between the post surface and the luting cement
Type 6
Mixed failure subtype-2 where the luting cement covers 75% of the post surface. This is regarded as minimal adhesive failure between the post surface and the luting cement