Comparative Evaluation of Penetration of Various Nano-sized Intra-canal Medicaments: An Confocal Laser Scanning Microscopic Study.

Background: To assess and contrast the depth of penetration of conventional calcium hydroxide, nanoparticle calcium hydroxide, silver nanoparticles, and combination of nanoparticle calcium hydroxide and silver nanoparticles into dentinal tubules using confocal laser scanning microscope.

Materials And Methods: Eighty human single-rooted teeth were decoronated and instrumented up to Protaper Universal F3. Teeth were separated into four groups at random ( = 20) following chemomechanical preparation.

Evaluation of Smear Layer Removal and Micro Hardness Alteration of Radicular Dentin after Using Various Chelating Agents - An Atomic Force Microscopic Study.

Background And Aims: For endodontic therapy to be successful, the smear layer produced by the root canal instruments must be removed. The study's objective is to evaluate the effectiveness of radicular dentin microhardness modification and smear layer removal utilizing various chelating agents.

Materials And Methods: Extracted human mandibular single-rooted premolar teeth were selected for the study.