Influence of post type on degree of conversion of a resin-based luting agent.

Purpose: To assess the degree of conversion (DC) at different levels of a resin-based luting agent used with different commercial posts. METHODS: A resin-based luting agent (Variolink II) was light-cured in a simulated dowel space in combination with different fiber posts: GC Fiber Post (GC), DT Light Safety Lock (SL), RelyX Fiber Post (RX), Reforpost (RE), DT Light Post Illusion (LPI), FRC Postec Plus (FP), Radix (RA), Snowpost (SP), Dentin Post X (DP), Macrolock Illusion (MI), and Composipost (CP). After 24 hours, DC was assessed through micro-Raman analysis at the coronal, middle, and apical thirds. Two-way ANOVA and Tukey test were used for post-hoc comparisons (P<0.05). RESULTS: The results demonstrated that the post-type, dowel space level, and between-factor interaction were statistically significant (P