Por favor, use este identificador para citar o enlazar este ítem:
https://doi.org/10.1016/j.aanat.2017.12.01
Twittear
Título: | Structural differences in enamel and dentin in human, bovine, porcine, and ovine teeth |
Fecha de publicación: | mar-2018 |
Editorial: | Elsevier |
Cita bibliográfica: | Annals of Anatomy - Anatomischer Anzeiger, 218 (2018) 7–17 |
ISSN: | Print: 0940-9602 Electronic: 1618-0402 |
Palabras clave: | Enamel Dentin X-ray diffraction (XRD) Fourier transform infrared spectroscopy (FTIR) Differential scanning calorimetry (DSC) Crystallographic structure |
Resumen: | Background The aim was to study differences between crystalline nanostructures from the enamel and dentin of human, bovine, porcine, and ovine species. Methods Dentine and enamel fragments extracted from sound human, bovine, porcine and ovine incisors and molars were mechanically ground up to a final particle size of <100 μm. Samples were analyzed using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and differential scanning calorimetry (DSC). Results Human enamel (HE) and dentin (HD) showed a-axis and c-axis lengths of the carbonate apatite (CAP) crystal lattice nearer to synthetic hydroxyapatite (SHA), which had the smallest size. Enamel crystal sizes were always higher than those of dentin for all species. HE and HD had the largest crystal, followed by bovine samples. Hydroxyapatites (HAs) in enamel had a higher crystallinity index (CI), CIRietveld and CIFTIR, than the corresponding dentin of the same species. HE and HD had the highest CIs, followed by ovine enamel (OE). The changes in heat capacity that were nearest to values in human teeth during the glass transition (ΔCp) were in porcine specimens. There was a significant direct correlation between the size of the a-axis and the substitution by both type A and B carbonates. The size of the nanocrystals and the crystallinity (CIRietveld y CIFTIR) were significantly and negatively correlated with the proteic phase of all the substrates. There was a strongly positive correlation between the caloric capacity, the CIs and the crystal size and a strongly negative correlation between carbonates type A and B and proteins. Conclusions There are differences in the organic and inorganic content of human, bovine, porcine and ovine enamels and dentins which should be taken into account when interpreting the results of studies using animal substrates as substitutes for human material. |
Autor/es principal/es: | Ortiz Ruiz, Antonio José Teruel Fernández, Juan de Dios Alcolea Rubio, Luis Alberto Hernández Fernández, Ana Martínez Beneyto, Yolanda Gispert Guirado, Francesc |
Facultad/Departamentos/Servicios: | Facultades, Departamentos, Servicios y Escuelas::Departamentos de la UMU::Dermatología, Estomatología, Radiología y Medicina Física |
Versión del editor: | https://www.sciencedirect.com/science/article/pii/S0940960218300268?via%3Dihub |
URI: | http://hdl.handle.net/10201/142535 |
DOI: | https://doi.org/10.1016/j.aanat.2017.12.01 |
Tipo de documento: | info:eu-repo/semantics/article |
Número páginas / Extensión: | 11 |
Derechos: | info:eu-repo/semantics/embargoedAccess |
Descripción: | © 2018 Elsevier GmbH. All rights reserved. This document is the Published version of a Published Work that appeared in final form in Annals of Anatomy. To access the final edited and published work see https://doi.org/10.1016/j.aanat.2017.12.012 |
Aparece en las colecciones: | Artículos: Dermatología, Estomatología, Radiología y Medicina Física |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Structural differences in enamel and dentin.pdf | 1,33 MB | Adobe PDF | Visualizar/Abrir Solicitar una copia |
Los ítems de Digitum están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.