ArticleBMC oral health2026
Dentin tubule penetration of a calcium silicate-based sealer after removal of calcium hydroxide or N-acetylcysteine medicaments: an in vitro study.
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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Abstract
backgroundThis study aimed to evaluate, using confocal laser scanning microscopy (CLSM), the dentin tubule penetration of a calcium silicate-based root canal sealer after removal of calcium hydroxide (Ca(OH)
methodsRoot canals of 128 extracted single-rooted mandibular premolars were prepared with ProTaper Next. Canals received Ca(OH)
resultsNeither the type of intracanal medicament nor the activation technique significantly affected the residual medicament amount (p > 0.05). However, the type of medicament significantly influenced sealer penetration, with NAC showing greater dentin tubule penetration than Ca(OH)₂ (p < 0.05). The activation technique did not significantly influence sealer penetration (p > 0.05). Sealer penetration was highest in the coronal third and lowest in the apical third (p < 0.05).
conclusionWithin the limitations of this in vitro study, NAC enhanced the dentin tubule penetration of a calcium silicate-based sealer compared with Ca(OH)₂. The activation technique did not affect sealer penetration or residual medicament.
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