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https://sekilaskonservasigigi.com/2016/09/14/case-123-gingival-and-localized-alveolar-bone-necrosis-related-to-the-leak-of-arsenic-contained-paste-in-a-necrosis-tooth/
Case 123: Gingival and localized alveolar bone necrosis related to the leak of arsenic-contained paste in a necrosis tooth