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There are several types of hemostatic dressings available for use in the oral surgery field, one of which is derived from chitosan : the HemCon Dental DressingR (HDD). Case 1 was an 85-year-old female whose chief complaint was dental pain. The patient was taking warfarin tablets because of a history of cerebral infarction. The right upper maxillary of the first premolar teeth and second premolar teeth were indicated for tooth extraction due to severe chronic periodontitis. Tooth extraction was performed while warfarin tablets were orally administered. Persistent bleeding was seen from the extracted tooth cavity after tooth extraction. The HDD was inserted into the extracted tooth cavity, and compression hemostasis was performed for 10 minutes. Case 2 was a 70-year-old male whose chief complaint was an ill-fitting right mandibular partial denture, with mandibular right alveolar ridge constriction and lacking keratinized gingiva. The right mandibular buccal frenum was excised, and a free gingival graft (FGG) and an expansion of the anterior ridge were performed. While performing the FGG, an HDD was applied to the donor side palate for 10 minutes. We conclude that the HDD is a fast-acting hemostatic agent with both wound healing and antimicrobial properties.

Two Cases of Clinical Application of a Chitosan-derived Hemostatic Agent for Hemostasis after Tooth Extraction and Periodontal Plastic Surgery