Actinomyces is micro flora which usually exist in human oral cavity, dental plaque, and tonsil. Essentially, actinomycosis occurs due to weakness of general and local resistance in spite of frail disease germ.
Recently we experenced a case of actinomycotic sulfur granule following the remaining of nylon suture which was used for stitching low lip lacerations.
This time, we reported the above-mentioned case added to another report and studied a part of foreign materials which are related to formation of actinomycotic sulfur granule.
