Lydia Rohmawati, Angela Arin Pratama, Devi Ragita Putri Pratiwi, Fitria Tahta Alfina, Woro Setyarsih, Munasir
The use of high concentrations of H2O2 in teeth whitening harms the health of teeth and gums. For this reason, an alternative is needed to minimize these adverse effects, namely by using TiO2 material modified with polydopamine (PDA) as a tooth whitening. This TiO2 material can be obtained from the extraction of Tulungagung sand using the leaching method. Then the TiO2 was added with Dopamine Hydrochloride (DA), and then it was ultrasonicated for 3 minutes and incubated at 90°C. After that, the sample was centrifuged at 4000 rpm, and a precipitate was obtained. The residue was dried at 80°C, and XRD and FTIR characterized the results. The analysis showed that the polydopamine-modified TiO2 had an anatase phase. It had the characteristics of TiO2 with Ti-O-Ti, Ti-O, and C-O functional groups at the absorption peak of 1122.57 to 771.53 cm-1 and polydopamine with functional groups OH, NH2, phenolic, CH2, and OH at absorption peaks from 3107.32 to 1195.87 cm-1. With the identification of the essential characteristics of the polydopamine-modified TiO2, it is hoped that later it can be applied as an effective and safe teeth whitener for healthy gums and teeth. © 2024 American Institute of Physics Inc.. All rights reserved.
Physics Department, Faculty of Mathematics and Sciences, Universitas Negeri Surabaya, Ketintang, Surabaya, 60231, Indonesia
