DEN 110 ALL QUIZZES FINAL EXAM QUESTIONS &
ANSWERS
A diastema is a space between two teeth in the same arch. When this occurs between
the maxillary central incisors, it is often the result of a pronounced labial frenum.
Both statements are true
A space, or lack of contact area, between any two teeth in the same arch is called a
diastema. When a diastema occurs between the maxillary central incisors, it is often the
result of a pronounced labial frenum extending to the crest of the alveolar ridge and
possibly over the ridge. This band of firm connective tissue causes the erupting incisors
to be pushed aside resulting in a diastema, or space. Correction of a diastema usually
involves surgical removal, or cutting, of the frenal tissue between teeth.
A generally healthy man in his forties is curious about "little raised yellow spots" on his
buccal mucosa. He has noticed them in the past but they do not seem to cause
problems or become larger, so has not previously asked about them. These areas are
MOST likely
a. fordyce granules
b. vallate papillae
c. measles
d. Kaposi's spots
a. Fordyce Granules
Contraction of which muscle raises the tongue upward?
a. mylohyoid
b. palatoglossal
c. levator glossal
d. palatopharyngeal
a. mylohyoid
Contraction of the mylohyoid muscle raises the tongue. The palatopharyngeal muscle
and the palatoglossal muscle form the posterolateral borders of the oral cavity. There is
not a muscle by the name of levator glossal.
In the following illustration, structure "c" is the:
,a. mucogingival junction
b. mucobuccal fold
c. mandibular labial frenum
d. maxillary labial frenum
a. mucogingival junction
The mucogingival junction is the demarcation between the attached gingiva and the
more loosely connected alveolar mucosa. A change in tissue color is evident at the
mucogingival junction. The attached gingiva is pink in color whereas the alveolar
mucosa is considerably more red. Structure "a" is the maxillary labial frenum. Structure
"b" is the mandibular labial frenum. Structure "d" is the mucobuccal fold.
Teeth are comprised of the four tissue types listed below. While examining and treating
teeth dental professionals must understand the composition and characteristics of each
tissue type. Match the tissue type with the appropriate description.
has a sensory function
pulp
Teeth are comprised of the four tissue types listed below. While examining and treating
teeth dental professionals must understand the composition and characteristics of each
tissue type. Match the tissue type with the appropriate description.
Tissue next to pulp
dentin
,Teeth are comprised of the four tissue types listed below. While examining and treating
teeth dental professionals must understand the composition and characteristics of each
tissue type. Match the tissue type with the appropriate description.
Outer covering of root
cementum
Teeth are comprised of the four tissue types listed below. While examining and treating
teeth dental professionals must understand the composition and characteristics of each
tissue type. Match the tissue type with the appropriate description.
hardest mineralized tissue
enamel
All of the following formations are depressions EXCEPT one. Which one is the
EXCEPTION?
a.Marginal ridge
b.Lingual pit
c.Fossa
d.All of the above are depressions.
e.Developmental groove
a.Marginal ridge
A ridge is an elevated portion of a tooth that runs in a line and is named for the specific
location in which it occurs. Specifically, marginal ridges are the rounded borders of
enamel that form the mesial and distal elevated shoulders of the occlusal surfaces of
posterior teeth as well as the mesial and distal shoulders of the lingual surfaces of
anterior teeth.Fossae, grooves, and pits are depressed formations within the tooth.
They are also described as concavities, indented areas, or simply concave structures. A
fossa is broadly defined as a depression or concavity. Developmental grooves are
shallow, depressed lines that separate primary parts of the crown or root. A pit is a
pinhole evident within a fossa or anywhere on a tooth. A lingual pit occurs on the lingual
surface of a tooth.
In the illustration below, structure "a" represents the
, a. lingual fossa
b. lingual groove
c. mesial marginal ridge
d. distal marginal ridge
a. lingual fossa
Structure "a" in the illustration is the lingual fossa. A fossa is a depression, concavity, or
an area on the tooth that is indented. Fossae are named for their location; the fossa
represented in the question is a lingual fossa. Structures b, c, and d are the mesial
marginal ridge, the lingual groove, and the distal marginal ridge, respectively.
The CEJ is where enamel meets the
a. cervical third
b. dentin
c. cementum
d. junction
c. cementum
Enamel and cementum meet at the cementoenamel junction (CEJ). The demarcating
line is called the cervical line, formed by the junction of the cementum of the root and
enamel of the crown.
ANSWERS
A diastema is a space between two teeth in the same arch. When this occurs between
the maxillary central incisors, it is often the result of a pronounced labial frenum.
Both statements are true
A space, or lack of contact area, between any two teeth in the same arch is called a
diastema. When a diastema occurs between the maxillary central incisors, it is often the
result of a pronounced labial frenum extending to the crest of the alveolar ridge and
possibly over the ridge. This band of firm connective tissue causes the erupting incisors
to be pushed aside resulting in a diastema, or space. Correction of a diastema usually
involves surgical removal, or cutting, of the frenal tissue between teeth.
A generally healthy man in his forties is curious about "little raised yellow spots" on his
buccal mucosa. He has noticed them in the past but they do not seem to cause
problems or become larger, so has not previously asked about them. These areas are
MOST likely
a. fordyce granules
b. vallate papillae
c. measles
d. Kaposi's spots
a. Fordyce Granules
Contraction of which muscle raises the tongue upward?
a. mylohyoid
b. palatoglossal
c. levator glossal
d. palatopharyngeal
a. mylohyoid
Contraction of the mylohyoid muscle raises the tongue. The palatopharyngeal muscle
and the palatoglossal muscle form the posterolateral borders of the oral cavity. There is
not a muscle by the name of levator glossal.
In the following illustration, structure "c" is the:
,a. mucogingival junction
b. mucobuccal fold
c. mandibular labial frenum
d. maxillary labial frenum
a. mucogingival junction
The mucogingival junction is the demarcation between the attached gingiva and the
more loosely connected alveolar mucosa. A change in tissue color is evident at the
mucogingival junction. The attached gingiva is pink in color whereas the alveolar
mucosa is considerably more red. Structure "a" is the maxillary labial frenum. Structure
"b" is the mandibular labial frenum. Structure "d" is the mucobuccal fold.
Teeth are comprised of the four tissue types listed below. While examining and treating
teeth dental professionals must understand the composition and characteristics of each
tissue type. Match the tissue type with the appropriate description.
has a sensory function
pulp
Teeth are comprised of the four tissue types listed below. While examining and treating
teeth dental professionals must understand the composition and characteristics of each
tissue type. Match the tissue type with the appropriate description.
Tissue next to pulp
dentin
,Teeth are comprised of the four tissue types listed below. While examining and treating
teeth dental professionals must understand the composition and characteristics of each
tissue type. Match the tissue type with the appropriate description.
Outer covering of root
cementum
Teeth are comprised of the four tissue types listed below. While examining and treating
teeth dental professionals must understand the composition and characteristics of each
tissue type. Match the tissue type with the appropriate description.
hardest mineralized tissue
enamel
All of the following formations are depressions EXCEPT one. Which one is the
EXCEPTION?
a.Marginal ridge
b.Lingual pit
c.Fossa
d.All of the above are depressions.
e.Developmental groove
a.Marginal ridge
A ridge is an elevated portion of a tooth that runs in a line and is named for the specific
location in which it occurs. Specifically, marginal ridges are the rounded borders of
enamel that form the mesial and distal elevated shoulders of the occlusal surfaces of
posterior teeth as well as the mesial and distal shoulders of the lingual surfaces of
anterior teeth.Fossae, grooves, and pits are depressed formations within the tooth.
They are also described as concavities, indented areas, or simply concave structures. A
fossa is broadly defined as a depression or concavity. Developmental grooves are
shallow, depressed lines that separate primary parts of the crown or root. A pit is a
pinhole evident within a fossa or anywhere on a tooth. A lingual pit occurs on the lingual
surface of a tooth.
In the illustration below, structure "a" represents the
, a. lingual fossa
b. lingual groove
c. mesial marginal ridge
d. distal marginal ridge
a. lingual fossa
Structure "a" in the illustration is the lingual fossa. A fossa is a depression, concavity, or
an area on the tooth that is indented. Fossae are named for their location; the fossa
represented in the question is a lingual fossa. Structures b, c, and d are the mesial
marginal ridge, the lingual groove, and the distal marginal ridge, respectively.
The CEJ is where enamel meets the
a. cervical third
b. dentin
c. cementum
d. junction
c. cementum
Enamel and cementum meet at the cementoenamel junction (CEJ). The demarcating
line is called the cervical line, formed by the junction of the cementum of the root and
enamel of the crown.
