Gingival Anatomy and Functions

The video tutorial covers the basics of gingiva, a part of the periodontium and oral mucosa that covers the alveolar processes and surrounds the teeth. It explains the divisions of gingiva into marginal, attached, and interdental types, with a detailed focus on marginal gingiva, also known as unattached gingiva. The tutorial describes the gingival sulcus, its ideal and clinical depths, and the factors affecting these measurements.

What is the primary role of gingiva in the oral cavity?

• To support the tongue

• To aid in digestion

• To cover the alveolar processes and surround the teeth

• To produce saliva

Which of the following is NOT a division of gingiva?

• Interdental gingiva

• Attached gingiva

• Marginal gingiva

• Lingual gingiva

What is another name for marginal gingiva?

• Lingual gingiva

• Interdental gingiva

• Unattached gingiva

• Attached gingiva

What is the normal width of the marginal gingiva?

• 3 mm

• 2 mm

• 1 mm

• 0.5 mm

What is the gingival sulcus?

• A type of tooth

• A shallow space around the tooth

• A part of the tongue

• A type of gum disease

What shape is the gingival sulcus?

• V-shaped

• S-shaped

• U-shaped

• O-shaped

What is the ideal depth of the gingival sulcus in a germ-free environment?

• 0 mm

• 1 mm

• 2 mm

• 3 mm

What is the typical sulcus depth in a healthy clinical condition?

• 0-1 mm

• 2-3 mm

• 4-5 mm

• 6-7 mm

What is the histological sulcus depth observed?

• 2.5 mm

• 1.8 mm

• 0.5 mm

• 3.2 mm