Deck 10: Gingival and Dentogingival Junctional Tissue

Question 1

When the deeper tissue of the periodontium is affected by periodontal disease,what is this condition now considered to be?

A) Gingival hyperplasia
B) Gingival recession
C) Gingivitis
D) Periodontitis

Answer 1

Periodontitis

Question 2

Which of the following statements concerning gingival crevicular fluid within a healthy gingival sulcus is correct?

A) Flow rate is fast
B) Contains white blood cells
C) Contains watery salivary components
D) Contains secretory IgA

Answer 2

Contains white blood cells

Question 3

Which of the following secretes a basal lamina on the surface that serves as a part of the primary epithelial attachment before the eruption of the tooth and after enamel maturation?

A) Odontoclasts
B) Ameloblasts
C) Cementoblasts
D) Epithelial rests of Malassez

Answer 3

Ameloblasts

Question 4

Which of the following is not a surface that the junctional epithelium can ever connect to by way of the epithelial attachment?

A) Enamel
B) Cementum
C) Dentin
D) Alveolar process

Question 5

Cell renewal of the junctional epithelium takes place in the:

A) internal basal lamina.
B) external basal lamina.
C) lamina propria.
D) basal layer of the tissue

Question 6

Which of the following is not part of the definitive junctional epithelium on the erupted tooth?

A) Ameloblasts
B) Outer enamel epithelium
C) Stratum intermedium
D) Stellate reticulum

Question 7

Which of the following occurs with the true apical migration of the epithelial attachment from advanced periodontal disease?

A) Shallower gingival sulcus
B) Formation of a periodontal pocket
C) Association with junctional epithelium lining
D) Tightly covered tooth roots

Question 8

The sulcular epithelium that creates the gingival sulcus is of _____ type(s) of epithelium,with its cells tightly packed.

A) an orthokeratinized
B) a nonkeratinized
C) a parakeratinized
D) both nonkeratinized or parakeratinized

Question 9

What does the slight depression of the free gingival groove on the outer surface of the gingiva correspond to?

A) Amount of gingival crevicular fluid
B) Depth of the inner gingival sulcus
C) Width of the outer attached gingiva
D) Apical border of the inner junctional epithelium

Question 10

Healthy attached gingiva is pink in color,and some areas have:

A) hyperkeratinization.
B) melanin pigmentation.
C) loss of stippling.
D) varying amounts of mobility.

Question 11

The epithelial attachment refers to the internal basal lamina and the:

A) apical layer of junctional epithelium.
B) interface of junctional epithelium with the tooth.
C) hemidesmosomes of the suprabasal cells.
D) desmosomes of the prickle cell layer.

Question 12

What occurs when damaging agents enter the junctional epithelium and the gingival tissue undergoes the initial signs of active disease?

A) Gingival hyperplasia
B) Gingival recession
C) Gingivitis
D) Periodontitis

Question 13

Which of the following is a not a prominent histologic characteristic of pocket epithelium?

A) Ulceration
B) Gingival hyperplasia
C) Smooth interface
D) Wrinkled papillary relief

Question 14

Of the various epithelia that make up the gingiva,which one does not normally keratinize?

A) Sulcular epithelium
B) Junctional epithelium
C) Both sulcular and junctional epithelia
D) Neither sulcular or junctional epithelia

Question 15

Given the turnover time of junctional epithelium,the evaluation of periodontal therapy should occur after _____ days.

A) 2
B) 3
C) 5
D) 7

Question 16

The most permeable section of the gingiva is considered which of the following?

A) Sulcular epithelium
B) Junctional epithelium
C) Both sulcular and junctional epithelia
D) Neither sulcular nor junctional epithelia

Question 17

Which of the following will extend through the gingival epithelial cell membrane,recognizing the presence of the bacterial endotoxins so as to mobilize the inflammatory response?

A) Tonofilaments
B) Toll-like receptors
C) Lysosomes
D) Chromatin

Question 18

The interdental gingiva assumes a nonvisible concave form between the facial and lingual gingival surfaces called the:

A) col.
B) papilla.
C) free gingival crest.
D) gingival apex of the contour.

Question 19

In what direction is the migratory route of the cells as turnover takes place in the junctional epithelium?

A) Coronal direction
B) Apical direction
C) Parallel to the apical crest of bone
D) Perpendicular to the tooth surface

Question 20

Which of the following has the highest rate of turnover?

A) Oral epithelium
B) Sulcular epithelium
C) Junctional epithelium
D) All have an equally high rate

Question 21

Which of the following is considered part of the dentogingival junctional tissue within a healthy oral cavity?

A) Periodontal epithelium
B) Junctional epithelium
C) Sulcular epithelium
D) Both junctional and sulcular epithelia

Question 22

What stops the gently used periodontal probe when reading the depth of a healthy gingival sulcus?

A) Col
B) Sulcular epithelium
C) Epithelial attachment
D) Attached gingiva

Question 23

The marginal gingiva has an overlying surface layer of what type of stratified squamous epithelium?

A) Orthokeratinized
B) Nonkeratinized
C) Parakeratinized
D) Both nonkeratinized and parakeratinized

Question 24

Which of the following features can be noted with marginal gingiva?

A) Varying amounts of stippling
B) Tightly bound to alveolar process
C) Opaque in comparison to attached gingiva
D) Considered masticatory mucosa

Question 25

Which of the following gingival tissue lines the floor of the gingival sulcus in a healthy situation?

A) Sulcular epithelium
B) Junctional epithelium
C) Attached gingiva
D) Marginal gingiva