*Introduction of pyogenic bacteria through the protective epithelium can lead to the development of localised liquefactive necrosis (abscesses) anywhere in the soft tissues of the [[Oral Cavity - Oropharynx - Anatomy & Physiology|oropharynx]].
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*These usually follow local trauma, e.g. penetrating foreign bodies.
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*The bacteria involved are usually [[:Category:Staphylococcus species|Staphylococci]], [[:Category:Streptococcus species|Streptococci]] or [[Arcanobacterium pyogenes]].
==Granulomatous and pyogranulomatous Inflammation==
==Granulomatous and pyogranulomatous Inflammation==