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. 2022 Apr 18;16(4):919–929. doi: 10.1055/s-0041-1742131

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The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. ( https://creativecommons.org/licenses/by/4.0/ )

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 2 — Macroscopic view of discolored teeth. Coca-Cola showed maximum discoloration followed by Mountain Dew and Red Bull drink. Tomato ketchup showed least discoloration followed by orange juice ( bluish tinge due to labeling ink used ).