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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Tooth discoloration in DI patients: (a) yellow-brown discoloration in primary teeth; (b) opalescent-gray discoloration in primary teeth; (c) yellow-brown discoloration in permanent teeth; (d) opalescent-gray discoloration in permanent teeth.