S I X  C O M P O N E N T S
Papillary Gingiva
  Gingival sulcus + free gingival margin.
Marginal Gingiva
  Thicker and rounder.
Attached Gingiva
  Flaccid and retractable.
Alveolar Mucosa
PDL
Alveolar Bone
R I C H A R D  Y O O N
7