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llustrated Dental Embryology Histology and Anatomy 4th 5th Edition Fehrenbach Test Bank.
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llustrated Dental Embryology Histology and Anatomy 4th 5thEdition Fehrenbach Test Bank.
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. - ANSWER: basal layer of the tissue.
Of the various epithelia that make up the gingiva, which one does not keratinize?
a. sulcular epithelium
b. junctional epithelium
c. both sulcular and junctional epithelia
d. neither sulcular or junctional epithelia - ANSWER: both sulcular and junctional epithelia
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 or junctional epithelia - ANSWER: junctional epithelium
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. - ANSWER: hemidesmosomes of the suprabasal cells.
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 - ANSWER: junctional epithelium
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. - ANSWER: col.
Healthy attached gingiva is pink in color and some areas may have:
a. hyperkeratinization.
b. melanin pigmentation.
c. loss of stippling.
d. varying amounts of mobility. - ANSWER: melanin pigmentation.
What does 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 - ANSWER: apical border of the inner junctional
epithelium
,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 and parakeratinized - ANSWER: nonkeratinized
Which of the following secretes a basal lamina on the surface that serves a part of the primary
epithelial attachment before the eruption of the tooth and after enamel maturation?
a. odontoblasts
b. ameloblasts
c. cementoblasts
d. epithelial rests of Malassez - ANSWER: ameloblasts
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 - ANSWER: ameloblasts
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. perpinducular to the tooth surface - ANSWER: coronal direction
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 - ANSWER: gingivitis
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 - ANSWER: toll-like receptors
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: periodontitis
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 - ANSWER: formation of a periodontal pocket
Which of the following is not a prominent histologic characteristic of pocket epithelium??
a. ulceration
, b. gingival hyperplasia
c. smooth interface
d. wrinkled papillary relief - ANSWER: smooth interface
Given the turnover time of junctional epithelium, the evaluation of periodontal therapy should occur
after ______ days.
a. 2
b. 3
c. 5
d. 7 - ANSWER: 7
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: Contains white blood cells.
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 - ANSWER: alveolar process
Which of the following gingival tissue lines the floor of the gingival sulcus in a healthy condition?
a. sulcular epithelium
b. junctional epithelium
c. attached gingiva
d. marginal gingiva - ANSWER: junctional epithelium
What stops the gently used probe when measuring the depth of a healthy gingival sulcus?
a. col
b. sulcular epithelium
c. epithelial attachment
d. attached gingiva - ANSWER: epithelial attachment
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 - ANSWER: considered masticatory mucosa
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 - ANSWER: orthokeratinized
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 - ANSWER: both junctional and sulcular epithelia
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