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. 2020 Nov 26;15(2):236–241. doi: 10.1055/s-0040-1716781

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European Journal of Dentistry. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License, which permits unrestricted reproduction and distribution, for non-commercial purposes only; and use and reproduction, but not distribution, of adapted material for non-commercial purposes only, provided the original work is properly cited.

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Fig. 3 — Scanning electron micrographs of the morphological analysis of the surface and cross-sectional areas of the dentin: ( A ) shows a representative scanning electron micrograph of the demineralized dentin with open tubules. ( B ) shows a representative scanning electron micrograph of the dentin immediately after brushing with the toothpaste with occluded dentinal tubules. ( C ) shows the dentin surface in which a mineralized layer was formed after 7 days of treatment. ( D ) shows the scanning electron micrograph of the treated dentin with a majority of occluded tubules after 1 week of treatment. ( E ) shows a scanning electron micrograph of the mineralized layer formed at the dentin surface, demonstrating the presence of silicon (6.70 weight%), fluorine (0.90 weight%), calcium (1.60 weight%), and phosphorus (0.46 weight%) in the elemental analysis.