The Measurement of Contact Angle, pH, and Conductivity of Artificial Saliva and Mouthwashes on Enamel, Glass-Ionomer, and Composite Dental Materials
Saima Qureshi,
Lazar Milić,
Bojan Petrović,
Marija Vejin,
Sanja Kojić,
Stefan Jarić,
Goran Stojanović
Affiliations
Saima Qureshi
Department of Power, Electronics and Telecommunications, Faculty of Technical Sciences, University of Novi Sad, Fruškogorska, 11, 21000 Novi Sad, Serbia
Lazar Milić
Department of Power, Electronics and Telecommunications, Faculty of Technical Sciences, University of Novi Sad, Fruškogorska, 11, 21000 Novi Sad, Serbia
Bojan Petrović
Department of Dentistry, Faculty of Medicine, University of Novi Sad, Hajduk Veljkova, 3, 21000 Novi Sad, Serbia
Marija Vejin
Department of Power, Electronics and Telecommunications, Faculty of Technical Sciences, University of Novi Sad, Fruškogorska, 11, 21000 Novi Sad, Serbia
Sanja Kojić
Department of Power, Electronics and Telecommunications, Faculty of Technical Sciences, University of Novi Sad, Fruškogorska, 11, 21000 Novi Sad, Serbia
Stefan Jarić
Institute BioSense, University of Novi Sad, Dr. Zorana Đinđića, 1, 21000 Novi Sad, Serbia
Goran Stojanović
Department of Power, Electronics and Telecommunications, Faculty of Technical Sciences, University of Novi Sad, Fruškogorska, 11, 21000 Novi Sad, Serbia
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°, 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 1205µS/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.
