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
Body of the mandible
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
False
Which tissue of the periodontium may be pigmented in dark-skinned individuals?
A. Free gingiva
B. Attached gingiva
C. Periodontal ligament
D. Alveolar mucosa
Attached Gingiva
Healthy gingival tissue ALWAYS has a dimpled appearance known as stippling.
A. True
B. False
False
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
True
Which of the following forms the base of a gingival sulcus?
A. Interdental gingiva
B. Attached gingival
C. Junctional epithelium
D. Periodontal Ligament
Junctional Epithelium
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
Cementum
Cementum does not have its own blood supply; it receives its nutrients from the periodontal ligament.
A. True
B. False
True
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
Alveolar bone proper
Which of the following tissues serves as a covering tissue for the outer services of the body and a lining
tissue for body cavities such as the mouth, stomach, and intestines?
A. Basal lamina
B. Connective tissue
C. Epithelial tissue
D. Keratinized tissue
Epithelial Tissue
Which of the following tissues fills the spaces between the tissues and organs of the body?
A. Basal lamina
B. Connective tissue
C. Epithelial tissue
D. Keratinized tissue
Connective tissue
Which of these epithelial layers is comprised of cells with nuclei that act as a cushion against
mechanical stress and wear?
A. Nonkeratinized layer
B. Keratinized layer
C. Extracellular ground layer
D. Collagen layer
Nonkeratinized layer
Epithelial cell junctions are cellular structures that can attach:
A. An epithelial cell to a neighboring epithelial cell
B. An epithelial cell to a basal lamina
C. An epithelial cell to elastin fibers
D. Both A and B
Both A and B
The function of cell junctions is to:
A. Make it easy for cells to detach from each other to facilitate migration of cells
B. Allow cells to bind together to function as a strong structural unit
C. Fill the spaces between neighboring epithelial cells
D. B
Allow cells to bind together to function as a strong structural unit
A cell junction that connects an epithelial basal cell to the basal lamina is termed:
A. Hemidesmosome
B. Desmosome
C. Epithelial ridge
D. Connective tissue papilla
Hemidesmosomes
In MOST places in the body, the epithelium meets the connective tissue in a wavy, uneven junction.
A. True
B. False
True
The deep extensions of epithelium that reach down into the connective tissue are termed:
A. Hemidesmosomes
B. Desmosomes
C. Epithelial ridges
D. Connective tissue papillae
Epithelial ridges
Connective tissue is comprised of a gel-like substance, fibers, and few cells
A. True
B. False
True
The sulcular and junctional epithelium are keratinized epithelial tissues.
A. True
B. False
False
The epithelium that forms the base of the sulcus and joins the gingiva to the tooth is called the:
A. Oral epithelium
B. Sulcular epithelium
C. Junctional epithelium
D. Squamous epithelium
Junctional Epithelium
In the junctional epithelium, epithelial cell attaches to neighboring epithelial cells via:
A. Desmosomes
B. Hemidesmosomes
C. External basal lamina
D. Internal basal lamina
Desmosomes
The junctional epithelium attaches to the tooth surface via the:
A. Desmosomes and the internal basal lamina
B. Desmosomes and the external basal lamina
C. Hemidesmosomes and the internal basal lamina
D. Hemidesmosomes and the external basal lamina
Hemidesmosomes and the internal basal lamina
The junctional epithelium attaches to the connective tissue via the:
A. Desmosomes and the internal basal lamina
B. Desmosomes and the external basal lamina
C. Hemidesmosomes and the internal basal lamina
D. Hemidesmosomes and the external basal lamina
Hemidesmosomes and the external basal lamina
Which of the following is NOT a function of the supragingival fiber bundles:
A. Brace the free gingiva against the tooth
B. Suspends the tooth in its bony socket
C. Allow the free gingiva to withstand the frictional forces
D. Connect adjacent teeth to one
Suspends the tooth in its bony socket
16. The periodontal ligament is a thin sheet of fibrous tissue located between the and the . (Fill in the
blank.)
Root cementum and socket wall
An important function of the cementum of the tooth is to attach the periodontal ligament fibers to the
tooth.
A. True
B. False
True
Alveolar bone is mineralized connective tissue.
A. True
B. False
True