Periodontics · single question

Which cell type is MOST responsible for suppuration (pus formation) in a dental or periodontal abscess?

  1. Neutrophils (PMNs)
  2. Lymphocytes
  3. Plasma cells
  4. Macrophages
Show answer and explanation

Correct answer: A. Neutrophils (PMNs)

  • A. Correct. PUS is composed primarily of NEUTROPHILS (PMNs). They are the first responders in acute inflammation, phagocytose bacteria, and release enzymes — creating the creamy, yellow exudate.
  • B. Incorrect. Lymphocytes are key in chronic inflammation and adaptive immunity but are not the primary pus-forming cells.
  • C. Incorrect. Plasma cells are found in chronic inflammation — not the pus-forming cells.
  • D. Incorrect. Macrophages are involved in chronic inflammation/wound healing — present in suppurative lesions but not the primary pus cell.

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