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. 2023 Nov 10;13:19617. doi: 10.1038/s41598-023-46759-9

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Kinetics of calcium (a,c) and phosphate (b,d) release from enamel (a,b) and dentin (c,d) samples of all species during 120 s incubation of native and pellicle-covered samples in HCl at pH 2.3. For all species, there was an increase in ion dissolution over the incubation time. A demineralisation-preventing effect of the pellicle was observed for all species. n = 4 subjects during pellicle formation with 3 hard tissue samples each, n = 8 native samples per hard tissue substance, mean values ± standard deviation.