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Volume 6, Issue 4 (Suppl) J Material Sci Eng, an open access journal
ISSN: 2169-0022 Materials Congress 2017
June 12-14, 2017
June 12-14, 2017 Rome, Italy
Materials Science and Engineering
9th World Congress on
Raman microspectroscopy in dental research
Tomasz Buchwald, Zuzanna Okulus and Adam Voelkel
Poznan University of Technology, Poland
Raman spectroscopy is very useful method to study the biological materials including teeth. In our research we used the
Raman microspectroscopy to study the compositional and structural analysis of raw and prepared dental hard tissues. All the
measurements were carried out on inVia Renishaw micro-Raman system with diode pumped laser emitting 785 nm near-infrared
wavelengths. Raman microscope was helpful in the research of total surface energy values of teeth fragments (enamel, crown dentin
and root dentin) with the use of inverse gas chromatography, to determine the surface changes of wet and dry bovine teeth tissues at
microstructural level. In Raman spectra of wet and dry enamel, root and crown dentin some slight differences connected with water
occurring are visible. For wet tissues, broad but weak band in region from 3000 to 3600 cm-1 assigned to stretching mode of OH−
groups is observed. Moreover, Raman microscope was effective for enamel and dentin characterization after surface preparation with
the use of commercial 3-component etch-and-rinse bonding system. Raman spectroscopy allowed to determine the surface changes
of hard tissue after each step of preparation (application of etchant, primer, adhesive and photopolymerization). There are no changes
observed in the Raman spectra of dentin and enamel after etching. In the Raman spectra of all analyzed teeth tissues after application
of primer and adhesive bands corresponding to functional groups present in compounds of these both bonding system components
are observed. Presented analysis of surface composition changes after each step of enamel and dentine preparation confirms that the
process was successfully conducted.
Biography
Tomasz Buchwald has worked as a Research Assistant in the Faculty of Technical Physics at Poznan University of Technology (Poland). Amajor area of his interest
focuses on the application of spectroscopic methods, especially Raman spectroscopy, in analysis of biological materials and biomaterials properties. His current
research interest is dental materials and human teeth affected by caries. He has published 16 articles in SCI Journals concerning mainly the determination of
materials properties by use of Raman microspectroscopy.
Tomasz Buchwald et al., J Material Sci Eng 2017, 6:4(Suppl)
DOI: 10.4172/2169-0022-C1-068