Nanostructural changes in dentine caused by endodontic irrigants

Barón, M., Llena, C., Forner, L., Palomares, M., Gonzalez-Garcia, C. and Salmerón-Sánchez, M. (2013) Nanostructural changes in dentine caused by endodontic irrigants. Medicina Oral Patologia Oral y Cirugia Bucal, 18(4), pp. 733-736.

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Abstract

Objective: To study nanostructural dentinal changes produced by endodontic irrigants. Study Design: Experimental study. Nanoindentations were performed on peritubular (PD) and intertubular dentine (ID) with an atomic force microscopy. Stiffness and adhesion force were determined before and after application of 5.25% sodium hypochlorite (NaOCl) and 17% ethylenediaminetetraacetic acid (EDTA). Normalized differences before and after treatment for stiffness and adhesion forces were calculated. A paired T-test was used to compare stiffnes and adhesion force before and after irrigants application. Results: After treatment with EDTA there was a 29.80% reduction in stiffness in ID and a 63.53% reduction in PD. Adhesion force was reduced by 21.22% and 8.21% respectively. After treatment with 5.25% NaOCI stiffness was reduced by 2.49% in ID and increased by 15.01% in PD. Adhesion force increased by 25.11% and 23.97% respectively. Conclusions: 17% EDTA reduced stiffness and adhesion force in ID and PD. Treatment with NaOCI at 5.25% had no significant effect on stiffness but did affect adhesion force in ID and PD.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Salmeron-Sanchez, Professor Manuel and Gonzalez Garcia, Dr Cristina
Authors: Barón, M., Llena, C., Forner, L., Palomares, M., Gonzalez-Garcia, C., and Salmerón-Sánchez, M.
College/School:College of Science and Engineering > School of Engineering > Biomedical Engineering
Journal Name:Medicina Oral Patologia Oral y Cirugia Bucal
ISSN:1698-4447
ISSN (Online):1698-6946

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