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Anatomy & Histology of the Gingival Unit and Basic Oral Hygiene

Course Number: 592

The Periodontium

The periodontium is comprised of the gingival unit and the attachment unit or attachment apparatus. The units are further broken down as follows: 1

Gingival Unit (Figure 1):

  • Free gingiva

  • Attached gingiva

  • Alveolar mucosa1

Attachment Unit (Figure 2):

  • Cementum

  • Alveolar Process

  • Periodontal Ligament

The Periodontium - Figure 1

Figure 1. Gingival Unit.

The Periodontium - Figure 2

Figure 2. Attachment Unit.