Arsenic Trioxide-Induced Mandibular Osteomyelitis Associated with Mycotic Infestation: A Case Report

Arsenic trioxide used in endodontic treatments has been shown to cause severe damages to surrounding bone and periodontal tissues. This report describes a case of alveolar osteomyelitis triggered by arsenic trioxide pulp devitalization and associated with mycotic infestation. Following clinical and radiological examinations, the concerned tooth was extracted, bone sequestrum was removed and granulation tissue was debrided. Histopathological biopsy examination, stained with hematoxylin/eosin, Grocott’s silver methenamine and periodic acid-Schiff, confirmed the diagnosis of chemical osteomyelitis associated with fungal infestation. Six months postoperatively, normal bone healing was observed.

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