Gingivitis Most cases result from bacterial infection follow either trauma, poor oral hygiene or various immunodeficient states. Macroscopic picture The gingiva bleeds easily, erythematous and edematous. Microscopic picture • The gingival connective tissue shows congested blood vessels and infiltrated with neutrophils and lymphocytes. •The overlying gingivial epithelium may be ulcerated or hyperplastic.
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