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FT‐Raman spectroscopy, µ‐EDXRF spectrometry, and microhardness analysis of the dentin of primary and permanent teeth
Author(s) -
Torres Carolina Paes,
Miranda GomesSilva Jaciara,
MenezesOliveira Maria Angélica Hueb,
Silva Soares Luís Eduardo,
PalmaDibb Regina Guenka,
Borsatto Maria Cristina
Publication year - 2018
Publication title -
microscopy research and technique
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.536
H-Index - 118
eISSN - 1097-0029
pISSN - 1059-910X
DOI - 10.1002/jemt.23005
Subject(s) - dentin , raman spectroscopy , molar , permanent teeth , indentation hardness , deciduous teeth , chemistry , dentistry , materials science , analytical chemistry (journal) , nuclear chemistry , chromatography , composite material , microstructure , crystallography , medicine , physics , optics
The chemical compositions (organic and inorganic contents) and mechanical behaviors of the dentin of permanent and deciduous teeth were analyzed and compared using X‐ray fluorescence spectrometry (µ‐EDXRF) Fourier transform Raman spectroscopy (FT‐Raman) and a microhardness test (HD). Healthy fresh human primary and permanent molars ( n = 10) were selected, The buccal surfaces facing upwards were stabilized in an acrylic plate, flattened, polished, and submitted to the µ‐EDXRF, FT‐Raman, and HD analysis. The results of the analysis were subjected to ANOVAs and Mann‐Whitney U /Student's t multiple comparisons tests. The data showed similar values for the dentin of the primary and permanent teeth in P content, organic content (amide I peak), inorganic content ( PO 4 3 –– 430 and 590), and microhardness, Nevertheless, Ca content and Ca/P weight ratio were higher, and theCO 3 2 –peak was lower in the dentin of the permanent teeth compared to primary teeth. It be concluded that despite permanent teeth showed more Ca element, both substrates showed similar behavior of chemical and physical properties.