@misc{10481/46692,
year = {2017},
url = {http://hdl.handle.net/10481/46692},
abstract = {The aim of this study was to assess the mechanical and chemical performance of sound
and caries-affected dentin (CAD), after Zn-free vs containing amalgam restorations
placement and thermocycling. Dentin surfaces were studied by Atomic Force
Microscopy (AFM) analysis for surface morphological characterization (including fibril
diameter assessment), nano-indentation (to measure nano-hardness-Hi and modulus of
Young-Ei), and single point Raman spectroscopy for chemical analysis. Measurements
were performed before amalgam placement, after amalgam removal, and after 3 months
of thermocycling (100,000cy/5 ºC and 55 ºC). Restorations increased both Hi and Ei at
intertubular dentin of CAD. The highest values of Hi were achieved at intertubular
dentin after restoring with Zn-containing amalgams. Remineralization of dentin was
attributed to the increase of both amorphous and crystalline new mineral, as lower
degrees of crystal imperfections in junction with crystal disorders, and improvement in
structural stability of collagen were found. Higher presence of minerals were also
confirmed after the decrease of fluoridated apatite and the increase of the total water
content. Proteoglycans, lipids, and proteins, augmented in both sound and CAD,
providing support for the mineral growing. The increase of bands assigned to vibration
of carbonate calcium phosphate contributed to a decrease of crystallinity.},
organization = {Project MAT2014-52036-P supported by the Ministry of Economy and Competitiveness
(MINECO) and European Regional Development Fund (FEDER).},
publisher = {John Wiley and Sons},
keywords = {Dentin},
keywords = {Remineralization},
keywords = {Raman},
keywords = {Amalgam},
title = {Ex vivo detection and characterization of remineralized carious dentin, by nanoindentation and single point Raman spectroscopy, after amalgam restoration},
doi = {10.1002/jrs.5055},
author = {Toledano Pérez, Manuel and Osorio Ruiz, María Estrella and Sánchez Aguilera, Fátima and Cabello Malagón, Inmaculada and Toledano Osorio, Manuel and Osorio Ruiz, Raquel},
}