Research Article

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 failureDescription of failure mode

Type 1Cohesive failure within the post

Type 2Adhesive 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 3Cohesive failures within the luting cement where the luting cement covers all post surface and the simulated acrylic canal

Type 4Adhesive 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 5Mixed 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 6Mixed 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