TY - JOUR
T1 - Raman spectroscopy analysis of dental enamel treated with whitening product – Influence of saliva in the remineralization
AU - Silveira, J.
AU - Coutinho, S.
AU - Marques, D.
AU - Castro, J.
AU - Mata, A.
AU - Carvalho, M. L.
AU - Pessanha, S.
N1 - info:eu-repo/grantAgreement/FCT/5876/147413/PT#
Sofia Pessanha acknowledges Portuguese Science and Technology Foundation (FCT) in the funding of LIBPhys-UNL (project - UID/FIS/04559/2013). S. Pessanha also acknowledges FCT for the post-doc grant SFRH/BPD/94234/2013.
PY - 2018/6/5
Y1 - 2018/6/5
N2 -
In this work we present the analysis of dental enamel treated with an over-the-counter whitening product, bought in e-commerce at a very low cost, used without medical supervision in an abusive manner, in order to evaluate its demineralization action. Moreover, we studied the influence of renewal or non-renewal of saliva solution in which the specimens were stored throughout the study. The Degree of Demineralization was determined through the evaluation of the PO
4
3−
symmetric stretching band (~959 cm
−1
) in Raman spectra of the specimens in different days during the course of the study. Results showed that a maximum of demineralization occurred between days 27 and 34 of application. Titration of the whitening product revealed a content of hydrogen peroxide 170-fold higher than what is allowed in Europe, according with legislation. Despite this extreme concentration of hydrogen peroxide, the demineralization was not as great as could be expected suggesting an important role of the pH of the solution in this demineralization mechanism.
AB -
In this work we present the analysis of dental enamel treated with an over-the-counter whitening product, bought in e-commerce at a very low cost, used without medical supervision in an abusive manner, in order to evaluate its demineralization action. Moreover, we studied the influence of renewal or non-renewal of saliva solution in which the specimens were stored throughout the study. The Degree of Demineralization was determined through the evaluation of the PO
4
3−
symmetric stretching band (~959 cm
−1
) in Raman spectra of the specimens in different days during the course of the study. Results showed that a maximum of demineralization occurred between days 27 and 34 of application. Titration of the whitening product revealed a content of hydrogen peroxide 170-fold higher than what is allowed in Europe, according with legislation. Despite this extreme concentration of hydrogen peroxide, the demineralization was not as great as could be expected suggesting an important role of the pH of the solution in this demineralization mechanism.
KW - Degree demineralization
KW - Raman
KW - Whitening agent
UR - http://www.scopus.com/inward/record.url?scp=85043320766&partnerID=8YFLogxK
U2 - 10.1016/j.saa.2018.03.007
DO - 10.1016/j.saa.2018.03.007
M3 - Conference article
C2 - 29525565
AN - SCOPUS:85043320766
SN - 1386-1425
VL - 198
SP - 145
EP - 149
JO - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
JF - Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy
T2 - 40th Colloquium on Spectroscopicum Internationale (CSI)
Y2 - 11 June 2017 through 16 June 2017
ER -