Journal Highlight: ATR-FTIR spectroscopy and μ-EDXRF spectrometry monitoring of enamel erosion caused by medicaments used in the treatment of respiratory diseases

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  • Published: Mar 5, 2018
  • Author: spectroscopyNOW
  • Channels: Infrared Spectroscopy
thumbnail image: Journal Highlight: ATR-FTIR spectroscopy and μ-EDXRF spectrometry monitoring of enamel erosion caused by medicaments used in the treatment of respiratory diseases

The erosive capacity of the four most commonly prescribed respiratory disease syrup medicaments on enamel have been estimated using micro-energy-dispersive X-ray fluorescence spectrometry and attenuated total reflection Fourier transform infrared spectroscopy.

ATR-FTIR spectroscopy and μ-EDXRF spectrometry monitoring of enamel erosion caused by medicaments used in the treatment of respiratory diseases

Microscopy Research and Technique, 2018, 81, 220-227
Raimundo Nonato Silva Gomes, Tanmoy T. Bhattacharjee, Luis Felipe C. S. Carvalho and Luís Eduardo Silva Soares

Abstract: Medicaments essential for alleviation of diseases may sometime adversely affect dental health by eroding the enamel, owing to their acidic nature. It is therefore highly desirable to be able to detect these effects quickly and reliably. In this study, we evaluated the erosive capacity of four most commonly prescribed respiratory disease syrup medicaments on enamel using micro-energy-dispersive X-ray fluorescence spectrometry (µ-EDXRF) and attenuated total reflection Fourier transform infrared spectroscopy (ATR-FTIR). Fifty-five enamel fragments obtained from 30 bovine teeth were treated with artificial saliva (S), acebrofilin hydrochloride (AC), ambroxol hydrochloride (AM), bromhexine hydrochloride (BR), and salbutamol sulfate (SS); by immersing in 3 mL of respective solutions for 1 min, three times a day at intervals of 1 hr, for 5 days. µ-EDXRF analysis of enamel surface did not reveal significant erosion caused by the medications. However, ATR-FTIR showed a detectable shift in the phosphate (PO4) antisymmetric stretching mode (ν3) at ∼985 cm−1 for AM, BR, and SS, indicating erosion. Multivariate statistical analysis showed that AC, AM, SS, and BR could be classified with 70%, 80%, 100%, and 100% efficiency from S (control), further highlighting the ability of ATR-FTIR to identify degree of erosion. This suggests ATR-FTIR may be used to rapidly and nondestructively investigate erosive effects of medicaments.

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