Please use this identifier to cite or link to this item: https://open.uns.ac.rs/handle/123456789/32456
Title: The Measurement of Contact Angle, pH, and Conductivity of Artificial Saliva and Mouthwashes on Enamel, Glass-Ionomer, and Composite Dental Materials
Authors: Saima Qureshi
Lazar Milić
Bojan Petrović 
Marija Vejin
Sanja Kojić 
Stefan Jarić
Goran Stojanović 
Keywords: contact angle;conductivity;MATLAB;saliva;wetting;enamel;glass ionomer;composite
Issue Date: 28-Jun-2022
Publisher: MDPI
Project: H2020 SALSETH
Journal: Materials
Abstract: The aim of this study was to tackle the topic of appropriate recommendations for artificial saliva and mouthwash usage. The contact angle, pH, and conductivity of two artificial saliva solutions, four mouthwashes, and their mixtures on enamel, glass-ionomer, and composite dental materials were measured. The measurements were conducted with a MATLAB algorithm to minimize human error. The obtained values for the contact angle were in the range from 7.98 to 52.6 degree and they showed completely nonlinear and nonuniform behavior for all investigated liquids and on all investigated substrates. Results reveal statistically significant differences among all tested liquids on all investigated substrates (p < 0.05). pH values ranged from 1.54 to 7.01. A wide range of conductivity values were observed, from 1205 uS/cm in the saliva-stimulating solution to 6679 mS/cm in the artificial saliva. Spearman’s test showed a moderate positive correlation between the pH and conductivity of the tested fluids (R = 0.7108). A comparison of the data obtained using Image J software and the MATLAB algorithm showed consistency, not exceeding 5% error. When an experiment uses human material and bioactive materials THAT are used in biomedicine as substrates, an additional definition of protocols is highly recommended for future research on this topic.
URI: https://open.uns.ac.rs/handle/123456789/32456
ISSN: 1996-1944
DOI: https:// doi.org/10.3390/ma15134533
Rights: Attribution-NonCommercial-NoDerivs 3.0 United States
Appears in Collections:FTN Publikacije/Publications

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