Chapter 1 The Periodontium in Health

Question 1

Which of the following is NOT one of the tissues of the periodontium?
A. Periodontal ligament
B. Body of the Mandible
C. Gingiva
D. Cementum

Answer 1

B. Body of the Mandible

Question 2

Cementum is NOT necessary to the health of the periodontium because the underlying dentin will protect the root if the cementum is removed by toothbrush abrasion or from dental procedures.
A. True
B. False

Answer 2

B. False

Question 3

Which tissue of the periodontium may be pigmented in dark-skinned individuals?
A. Free gingiva
B. Attached gingiva
C. Periodontal ligament
D. Alveolar mucosa

Answer 3

B. Attached gingiva

Question 4

Healthy gingival tissue ALWAYS has a dimpled appearance known as stippling.
A. True
B. False

Answer 4

B. False

Question 5

One function of the attached gingiva is to prevent the free gingiva from being pulled away from the tooth when tension is applied to the alveolar mucosa.
A. True
B. False

Answer 5

A. True

Question 6

Which of the following forms the base of a gingival sulcus?

A. Interdental gingiva
B. Attached gingival
C. Junctional epithelium
D. Periodontal Ligament

Answer 6

C. Junctional epithelium

Question 7

On the tooth side, the periodontal ligament fibers are embedded in which of the following structures?
A. Alveolar bone
B. Attached gingiva
C. Interdental gingiva
D. Cementum

Answer 7

D. Cementum

Question 8

Cementum does not have its own blood supply; it receives its nutrients from the periodontal ligament.
A. True
B. False

Answer 8

A. True

Question 9

Which of the following is the thin layer of bone that lines the tooth socket?
A. Alveolus
B. Alveolar bone proper
C. Cortical bone
D. Cancellous bone

Answer 9

B. Alveolar bone proper