Morphological and Chemical Comparative Analysis of the Human and Bovine Dentin-Adhesive Layer

Morphological and Chemical Comparative Analysis of the Human and Bovine Dentin-Adhesive Layer

Autor Silva Soares, Luis Eduardo Google Scholar
Esprito Santo, Ana Maria do Autor UNIFESP Google Scholar
Instituição Univ Vale Paraiba
Universidade Federal de São Paulo (UNIFESP)
Resumo Micro energy-dispersive X-ray fluorescence spectrometry (mu-EDXRF) and scanning electron microscopy (SEM) were used to evaluate dentin treated with an etch and rinse adhesive (ER) and a self-etch adhesive (SE). Ten human molars (H) and ten bovine anterior teeth (B) were prepared (exposure of dentin and divided in the middle) and allocated into two different adhesion strategy groups per substrate (n = 40). mu-EDXRF data and SEM images were obtained before and after treatment. Untreated dentin of both substrates did not differ in terms of Ca (p < 0.1503), P (p < 0.2986) or Ca/P ratio (p < 0.1400). H-SE and B-SE specimens showed reduced P content (p < 0.0001; p < 0.0002), while H-ER and B-ER specimens showed reduced Ca and P content (p < 0.0001; p < 0.0001) when compared with untreated specimens. the Ca/P ratio was significantly higher in H-ER and B-ER specimens than in H-SE and B-SE specimens (p < 0.0001; p < 0.0080). Untreated dentin showed a homogeneous elemental distribution. However, after adhesive treatments, the surface of the dentin showed an irregular demineralization pattern. the resin tags
Palavra-chave bovine dentin
human dentin
self-etch adhesive
energy-dispersive X-ray fluorescence spectrometry
scanning electron microscopy
Idioma Inglês
Financiador Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Número do financiamento FAPESP: 2005/50811-9
Data de publicação 2015-02-01
Publicado em Microscopy and Microanalysis. New York: Cambridge Univ Press, v. 21, n. 1, p. 204-213, 2015.
ISSN 1431-9276 (Sherpa/Romeo, fator de impacto)
Publicador Cambridge Univ Press
Extensão 204-213
Fonte http://dx.doi.org/10.1017/S143192761401366X
Direito de acesso Acesso restrito
Tipo Artigo
Web of Science WOS:000351763500020
Endereço permanente http://repositorio.unifesp.br/handle/11600/38716

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