Chapter 8: Supporting Structures

Inflammation of the gingival papilla is easily recognized because the area takes on a color that is more red than normal.

• Both the statement and the reason are correct and related.

• Both the statement and the reason are correct but are NOT related.

• The statement is correct, but the reason is NOT correct.

• The statement is NOT correct, but the reason is correct.

• NEITHER the statement NOR the reason is correct.

Each of the following structures is a component of the gingival unit EXCEPT one. Which one is the EXCEPTION?

• Attached gingiva

• Free gingiva

• Alveolar mucosa

• Periodontal ligament

Which is a gingival fiber?

• Horizontal

• Oblique

• Circular

• Apical

Sharpey's fibers can be found in all of the following EXCEPT one. Which one is the EXCEPTION?

• Alveolar bone

• Dentin

• Cementum

• Periodontal ligament

• All of the Above

When teeth are subjected to relatively constant forces tooth mobility is likely to result because forces cause pressure on the root, periodontal ligament, and bone.

• Both the statement and the reason are correct and related.

• Both the statement and the reason are correct but are NOT related.

• The statement is correct, but the reason is NOT correct.

• The statement is NOT correct, but the reason is correct.

• NEITHER the statement NOR the reason is correct.

Alveolar bone is composed of all of the following EXCEPT one. Which one is the EXCEPTION?

• Collagen

• Intercellular substance

• Apatite crystals

• Lamina dura

With regard to apposition and resorption, on which tissue are these activities MOST active?

• Dentin

• Bone

• Cemementum

• Periodontal ligament

The physical arrangement of bone is permanently fixed. Only externally originated pressure or tension from orthodontic forces cause bone apposition and resorption.

• Both statements are true.

• The first statement is true, the second is false.

• The first statement is false, the second is true.

• Both statements are false.

The gingival transseptal fibers extend from the cementum of one tooth to the alveolar process of adjacent teeth. The oblique gingival fibers are circular bands of connective tissue that surround the teeth.

• Both statements are true.

• The first statement is true, the second is false.

• The first statement is false, the second is true.

• Both statements are false.

The thin, soft, smooth alveolar mucosa is highly keratinized. The thicker, stippled attached gingiva is keratinized, contains rete pegs, and is covered with stratified squamous epithelium.

• Both statements are true.

• The first statement is true, the second is false.

• The first statement is false, the second is true.

• Both statements are false.