ArticleCureus2026
Hydrogen Peroxide Inhalation During Dental Whitening Leading to Massive Hemoptysis and Tumor-Like Endobronchial Obstruction: A Case Report.
Article in Cureus, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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3 authors.
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Abstract
Hydrogen peroxide (H₂O₂) is widely used in dental whitening and is generally considered safe when applied under professional supervision. However, accidental aspiration may cause unexpected airway complications. A 55-year-old North African woman presented with massive hemoptysis, preceded by a 3-month history of persistent dry cough and an earlier minor hemoptysis episode. Symptoms had begun shortly after a dental whitening procedure using 35% H₂O₂, complicated by intense pharyngeal pain, ulcerative lesions, and severe coughing. Chest imaging showed complete left lower lobe atelectasis due to an intraluminal soft-tissue lesion, with associated parenchymal consolidation. Flexible bronchoscopy was attempted but interrupted due to complications, after which the patient expectorated thick mucus. Follow-up imaging one month later demonstrated complete resolution of the lesion and full lung re-expansion. This case highlights the potential for severe airway injury following dental use of high-concentration H₂O₂. Awareness of such iatrogenic exposures is essential when evaluating unexplained hemoptysis and atelectasis.
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