S I X  C O M P O N E N T S
  Papillary Gingiva
Normal Findings
  Marginal Gingiva
Gingivitis
  Attached Gingiva
Periodontitis
  Alveolar Mucosa
  Periodontal Ligament
Systemic Conditions
  Alveolar Bone
R I C H A R D  Y O O N
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