ArticleBMC oral health2026
The effect of nano chitosan and calcium hydroxide intracanal medications on sealer penetration & bond strength in radicular dentin.
Article in BMC oral health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
3 authors.
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Abstract
backgroundA three-dimensional obturation that provides a fluid tight seal of the root canal system is essential for long-term treatment success. Intracanal medicaments may hinder sealer penetration and/or affect its ability to bond with dentin. This study aimed to evaluate the sealer penetration and push-out bond strength after using Calcium hydroxide and a 2% nano-chitosan gel (CSNPs). METHODOLOGY: Twenty-four extracted single-canal lower premolars were randomly divided, according to the intra canal medicament used, into two groups: Group A, Ca(OH)
resultsFor both groups, push-out bond strength varied significantly across root thirds (p < 0.001), with higher bond strength in the coronal third. The penetration radius values were significantly greater in the CSNPs group at all root levels (p ≤ 0.001). At the same time, no significant differences were found between groups or among root thirds in terms of penetration area ( p > 0.05).
conclusionsBoth Ca(OH) CLINICAL RELEVANCE: Clinically, the choice between Ca(OH)
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