ABSTRACT
Pulpal and periapical pathosis are biofilm-induced infections. Understanding the complex nature of endodontic biofilm would help to create a new disinfection strategy to eliminate the microorganism from the root canal system. The intricate canal structure creates challenges for proper disinfection, necessitating the need to understand the biofilm structure, composition, and mechanism within the biofilm community. This paper describes the endodontic biofilm structure, formation of biofilm, and advanced therapeutic options for combating the biofilm community within the root canal system.
ABSTRACT
AIM: To compare and evaluate the compressive and flexural strengths of two resin-based core build-up materials with an alkasite material. MATERIALS AND METHODS: ParaCore, Tetric N ceram Bulk-fill composite, and Cention N were used. A total of 90 specimens were prepared. Customized cylindrical split molds of dimension 6 ± 1 mm (height) × 4 ± 1 mm (diameter) were used to fabricate 15 samples of each core material for testing the compressive strength and rectangular split metal molds of dimensions 25 ± 1 mm (length) × 2 ± 1 mm (width) × 2 ± 1 mm (height) were used to fabricate 15 samples of each core material for testing the flexural strength. Then the samples were tested using a Universal testing machine (UTM). RESULTS: The compressive and flexural strengths of Cention N were significantly less than ParaCore® but higher than Tetric® N-CeramTM Bulk-fill core build-up material. CONCLUSION: Within the limitations of this study, it was concluded that Cention N may be used as an alternative to other core build-up materials after further in-vitro and in-vivo studies. CLINICAL SIGNIFICANCE: Cention N had the added advantage that self-cure polymerization alone was sufficient to achieve good physical properties when compared to the other two resin-based core build-up materials.
