Deck 5: Clinical Oral Structures, Dental Anatomy, and Root Morphology

Question 1

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
Protrusive movements in this client's dentition are not guided by incisors because incisors do not occlude with normal interdigitation and overbite in centric occlusion.

A)Both the statement and reason are correct
B)The statement is correct, but the reason is not correct
C)The statement is not correct, but the reason is correct
D)Neither the statement nor reason is correct

Answer 1

Both the statement and reason are correct

Question 2

Use Case A and Figure 5-28 to answer The Following questions
CASE AMixed Dentition
The mother of this young patient has expressed an interest in an orthodontic assessment for her child. The patient is cooperative and interested. Her oral hygiene is good. The hygienist notes several loose primary teeth. The gingiva surrounding the partially erupted teeth appears red and edematous. The mother has questions about when the partially erupted teeth will be fully formed and erupt into the oral cavity.
The cusp tips of which tooth are just erupting through the gingiva?

A)# 4
B)# 5
C)# 12
D)# 13

Answer 2

# 12

Question 3

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
In a centric occlusion, the relationship of anterior teeth would be recorded in the client's dental chart as:

A)Edge-to-edge bite
B)Excessive overbite
C)Excessive overjet
D)Open bite

Answer 3

Open bite

Question 4

Use Case A and Figure 5-28 to answer The Following questions
CASE AMixed Dentition
The mother of this young patient has expressed an interest in an orthodontic assessment for her child. The patient is cooperative and interested. Her oral hygiene is good. The hygienist notes several loose primary teeth. The gingiva surrounding the partially erupted teeth appears red and edematous. The mother has questions about when the partially erupted teeth will be fully formed and erupt into the oral cavity.
When this patient bites down, all maxillary teeth overlap mandibular teeth in a horizontal direction. This characteristic is referred to as:

A)Overbite
B)Overjet
C)Edge-to-edge bite
D)Open bite

Question 5

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
The curve of Spee for this client can be described as:

A)Concave for maxillary teeth and convex for mandibular teeth
B)Convex for maxillary teeth and concave for mandibular teeth
C)Convex for both maxillary and mandibular teeth
D)No curve of Spee is present

Question 6

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
Which tooth appears to have a DO (disto-occlusal) amalgam restoration?

A)# 12
B)# 13
C)# 14
D)# 21

Question 7

Use Case A and Figure 5-28 to answer The Following questions
CASE AMixed Dentition
The mother of this young patient has expressed an interest in an orthodontic assessment for her child. The patient is cooperative and interested. Her oral hygiene is good. The hygienist notes several loose primary teeth. The gingiva surrounding the partially erupted teeth appears red and edematous. The mother has questions about when the partially erupted teeth will be fully formed and erupt into the oral cavity.
Which primary tooth has an occlusal amalgam restoration?

A)Tooth A
B)Tooth B
C)Tooth I
D)Tooth J

Question 8

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
Which tooth is in linguo-version?

A)# 12
B)# 13
C)# 14
D)# 21

Question 9

Use Case A and Figure 5-28 to answer The Following questions
CASE AMixed Dentition
The mother of this young patient has expressed an interest in an orthodontic assessment for her child. The patient is cooperative and interested. Her oral hygiene is good. The hygienist notes several loose primary teeth. The gingiva surrounding the partially erupted teeth appears red and edematous. The mother has questions about when the partially erupted teeth will be fully formed and erupt into the oral cavity.
The root anatomy of the second primary molars is characterized by divergent roots and short root trunks. This anatomic feature is designed to accommodate the development of the first permanent premolar crowns.

A)Both the statement and the reason are correct and related
B)Both the statement and the reason are correct but not related
C)The statement is correct, but the reason is not correct
D)Neither the statement nor the reason is correct

Question 10

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
A round, reddened ulceration is observed near the mental foramen. This area is located within the:

A)Fauces
B)Mucogingival junction
C)Mucobuccal fold
D)Sublingual fold

Question 11

Use Case A and Figure 5-28 to answer The Following questions
CASE AMixed Dentition
The mother of this young patient has expressed an interest in an orthodontic assessment for her child. The patient is cooperative and interested. Her oral hygiene is good. The hygienist notes several loose primary teeth. The gingiva surrounding the partially erupted teeth appears red and edematous. The mother has questions about when the partially erupted teeth will be fully formed and erupt into the oral cavity.
Choose the statement that BEST describes when root formation for the erupting tooth in question #2 will be complete.

A)The roots will be completely formed at the time of tooth eruption
B)The roots will be completely formed within 6 months of tooth eruption
C)The roots will be completely formed within 2 to 3 years after tooth eruption
D)The roots will be completely formed no sooner than 3 to 5 years after tooth eruption

Question 12

Use Case A and Figure 5-28 to answer The Following questions
CASE AMixed Dentition
The mother of this young patient has expressed an interest in an orthodontic assessment for her child. The patient is cooperative and interested. Her oral hygiene is good. The hygienist notes several loose primary teeth. The gingiva surrounding the partially erupted teeth appears red and edematous. The mother has questions about when the partially erupted teeth will be fully formed and erupt into the oral cavity.
All of the following concerning tooth B are true except one. Which one is the exception?

A)The CEJ on the mesial half of the buccal curves apically
B)Closely resembles the form of the first permanent molar
C)Does not resemble any other tooth
D)There is a prominent cervical ridge on the buccal

Question 13

Use Case A and Figure 5-28 to answer The Following questions
CASE AMixed Dentition
The mother of this young patient has expressed an interest in an orthodontic assessment for her child. The patient is cooperative and interested. Her oral hygiene is good. The hygienist notes several loose primary teeth. The gingiva surrounding the partially erupted teeth appears red and edematous. The mother has questions about when the partially erupted teeth will be fully formed and erupt into the oral cavity.
To which anatomical structure is the arrow pointing?

A)Incisive papilla
B)Median palatine suture
C)Rugae
D)Palatine fovea

Question 14

Use Case A and Figure 5-28 to answer The Following questions
CASE AMixed Dentition
The mother of this young patient has expressed an interest in an orthodontic assessment for her child. The patient is cooperative and interested. Her oral hygiene is good. The hygienist notes several loose primary teeth. The gingiva surrounding the partially erupted teeth appears red and edematous. The mother has questions about when the partially erupted teeth will be fully formed and erupt into the oral cavity.
Which of the following is NOT a characteristic of the mixed dentition stage?

A)Clinical crowns appear to be consistently at the same height
B)Crowding
C)Different tooth colors
D)Disproportionately sized teeth

Question 15

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
Use canines to determine Angle's Classification of Malocclusion. Which of the following would be the best choice?

A)Class I malocclusion
B)Class II division I malocclusion
C)Class II division II malocclusion
D)Class III malocclusion

Question 16

Use Case A and Figure 5-28 to answer The Following questions
CASE AMixed Dentition
The mother of this young patient has expressed an interest in an orthodontic assessment for her child. The patient is cooperative and interested. Her oral hygiene is good. The hygienist notes several loose primary teeth. The gingiva surrounding the partially erupted teeth appears red and edematous. The mother has questions about when the partially erupted teeth will be fully formed and erupt into the oral cavity.
Determine the age of this person by observing the teeth that are present. This patient is:

A)8 to 9 years old
B)9 to 10 years old
C)10 to 11 years old
D)11 to 12 years old

Question 17

Use Case A and Figure 5-28 to answer The Following questions
CASE AMixed Dentition
The mother of this young patient has expressed an interest in an orthodontic assessment for her child. The patient is cooperative and interested. Her oral hygiene is good. The hygienist notes several loose primary teeth. The gingiva surrounding the partially erupted teeth appears red and edematous. The mother has questions about when the partially erupted teeth will be fully formed and erupt into the oral cavity.
At what age would you expect all of the premolars to be at least partially erupted?

A)9 years
B)10 years
C)11 years
D)12 years

Question 18

Use Case A and Figure 5-28 to answer The Following questions
CASE AMixed Dentition
The mother of this young patient has expressed an interest in an orthodontic assessment for her child. The patient is cooperative and interested. Her oral hygiene is good. The hygienist notes several loose primary teeth. The gingiva surrounding the partially erupted teeth appears red and edematous. The mother has questions about when the partially erupted teeth will be fully formed and erupt into the oral cavity.
Which tooth on the maxillary left appears to be in torso-version?

A)# 6
B)# 7
C)# 9
D)# 10

Question 19

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
This client's posterior mandibular teeth exhibit normal axial positioning. This positioning is best described as:

A)More parallel to the median plane
B)Tip buccally toward the median plane
C)Tip lingually toward the median plane
D)Tip lingually away from the median plane

Question 20

Use Case A and Figure 5-28 to answer The Following questions
CASE AMixed Dentition
The mother of this young patient has expressed an interest in an orthodontic assessment for her child. The patient is cooperative and interested. Her oral hygiene is good. The hygienist notes several loose primary teeth. The gingiva surrounding the partially erupted teeth appears red and edematous. The mother has questions about when the partially erupted teeth will be fully formed and erupt into the oral cavity.
Prior to the eruption of the first permanent molars, the relationship of the distal surfaces of the second primary molars was recorded as a "mild mesial step." Which Angle's Classification of Occlusion will most likely result when the permanent molars are fully erupted?

A)Class 0 malocclusion
B)Class I malocclusion
C)Class II malocclusion
D)Class III malocclusion

Question 21

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
During an oral examination, which of the following structures appears to be the most posterior?

A)Circumvallate papillae
B)Lingual frenum
C)Lingual tonsils
D)Pharyngeal tonsils

Question 22

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
A 17-year-old client complains of discomfort associated with the eruption of #17. An operculum is noted when examining the:

A)Maxillary tuberosity
B)Buccal frenum
C)Retromolar area
D)Vestibule

Question 23

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
An inferior nerve block is indicated for periodontal debridement of the mandibular right quadrant. The target area for this injection is lateral to the:

A)Glossopalatine arch
B)Retromolar area
C)Pharyngopalatine arch
D)Pterygomandibular raphe

Question 24

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
When assessing furcation involvement on the mesial aspect of tooth #14, the dental hygienist should check from the buccal aspect of the tooth because the mesial furcation is located more toward the buccal surface than toward the lingual surface.

A)Both the statement and reason are correct
B)The statement is correct, but the reason is not correct
C)The statement is not correct, but the reason is correct
D)Neither the statement nor reason is correct

Question 25

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
When assessing an occlusion, the dental hygienist notes that tooth #30 is missing. Tooth #6 is facial to and mesial to tooth #27. All anterior teeth are slightly protruded. This occlusal relationship would be recorded as:

A)Class I
B)Class II division I
C)Class II division II
D)Class III

Question 26

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
Which one of the following statements concerning teeth with furcations is TRUE?

A)The more cervical a furcation, the more stable is the tooth due to more inter-radicular bone
B)Furcation involvement occurs when the attachment level is coronal to the furcation roof
C)Furcations are more cervical on second molars
D)A concavity is found apical to the furcation on the lingual root of the maxillary first molar

Question 27

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
This structure separates the soft palate from the cheek:

A)Glossopalatine arch
B)Mucobuccal fold
C)Pharyngopalatine arch
D)Pterygomandibular raphe

Question 28

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
The lingual convergence of proximal surfaces facilitates instrumentation for all permanent teeth except:

A)Mandibular incisors and maxillary canines
B)Mandibular second premolar and maxillary first molar
C)Mandibular second premolar and maxillary second molar
D)Mandibular first premolar and maxillary first molar

Question 29

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
All of the following are characteristics of primary teeth EXCEPT one. Which one is the EXCEPTION?

A)Primary teeth have pronounced buccocervical ridges that constrict at the CEJ
B)Primary occlusal tables are narrower faciolingually than are permanent occlusal tables
C)The primary enamel depth is thicker at cusp tips and thinner at the CEJ than permanent tooth enamel
D)Pulp chambers are larger and pulp horns extend more occlusally than permanent tooth pulps

Question 30

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
Excessive retraction with the dental mirror or other instruments may cause cracking and irritation of this anatomic structure:

A)Mucobuccal fold
B)Vermillion zone
C)Labial mucosa
D)Labial commissure

Question 31

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
During assessment, the dental hygienist observes wedge-shaped cervical defects on the maxillary left permanent canine and premolars. If the loss of cervical tooth structure is attributed to biomechanical loading, this would be recorded in the client's dental chart as:

A)Abrasion
B)Abfraction
C)Caries
D)Erosion

Question 32

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
Which of the following statements about tooth form characteristics is true?

A)Distal cusp ridges are shorter than mesial cusp ridges
B)The facial crest of curvature is located in the middle third on posterior teeth
C)The proximal crests of curvature are located in the cervical third of all crowns
D)Ideally, the proximal crest of curvature is also the contact area

Question 33

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
These permanent molars are susceptible to caries development in the occlusal pits found in mesial, central, and distal fossae:

A)All molars
B)Maxillary molars
C)Mandibular molars
D)Maxillary and mandibular first molars only

Question 34

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
The mucogingival junction can be observed only in the vestibule on the maxillary arch because no alveolar mucosa is present on the palate.

A)Both the statement and reason are correct
B)The statement is correct, but the reason is not correct
C)The statement is not correct, but the reason is correct
D)Neither the statement nor reason is correct

Question 35

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
Which nonsuccedaneous teeth are present in the dentition of a 10-year-old child?

A)Permanent incisors
B)Permanent premolars
C)Permanent first molars
D)Permanent second molars

Question 36

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
This salivary gland produces large amounts of saliva that is primarily serous in composition:

A)Parotid
B)Palatal
C)Sublingual
D)Submandibular

Question 37

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
Which of the following characteristics of occlusion does the term INTERDIGITATION refer to?

A)Centric cuspation of maxillary lingual and mandibular buccal cusps
B)Axial positioning of maxillary and mandibular teeth
C)A tooth articulating with two teeth in the opposing arch
D)Teeth contacting at their proximal crests of curvature

Question 38

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
When comparing mandibular molars, the mandibular first molar is more likely to have a concavity on the facial surface starting just apical to the cemento-enamel junction (CEJ). The mandibular second molar is more likely to have a prominent concavity and two root canals on the mesial surface of the mesial root.

A)Both statements are TRUE
B)Both statements are FALSE
C)The first statement is TRUE, and the second statement is FALSE
D)The first statement is FALSE, and the second statement is TRUE

Question 39

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
Which of the following characteristics facilitates the scissors-like action of incisors?

A)Overbite
B)Overjet
C)Protrusion
D)Interdigitation

Question 40

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
Lateral movements are being assessed in a 14-year-old girl undergoing an orthodontic evaluation. The hygienist would expect these movements to be guided by:

A)Incisors
B)Canines
C)Premolars
D)Molars

Question 41

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
Which permanent tooth crown has a mesial surface that is in a straight line with the mesial surface of the root?

A)Maxillary central incisor
B)Mandibular central incisor
C)Mandibular lateral incisor
D)Mandibular canine

Question 42

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
During swallowing, movement of this structure helps seal the nasopharynx, decreasing the risk of food entering the nasal cavity.

A)Palatine fovea
B)Palatine raphe
C)Glossopalatine arch
D)Uvula

Question 43

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
Which of the following statements concerning root anatomy is TRUE?

A)The proximal surfaces of maxillary incisors are more accessible from the facial approach
B)Mandibular first premolars are oval or elliptical in cross-section and may have distal concavities
C)Maxillary second premolars are broad proximally and oval in cross-section
D)Mandibular canines have one root and are round in cross-section

Question 44

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
When comparing the maxillary first premolar and the maxillary second premolar, all of the following statements are true EXCEPT one. Which one is the EXCEPTION?

A)Both have a long central developmental groove
B)Both have a transverse ridge
C)The first premolar has a mesial crown concavity, but the second premolar does not
D)The first premolar cusps are longer than lingual cusps, but the second premolar cusps are more equal in length

Question 45

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
Which of the following permanent teeth erupts first?

A)# 20
B)# 5
C)# 22
D)# 11

Question 46

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
Which permanent tooth does not have a transverse ridge?

A)Maxillary canine
B)Maxillary first premolar
C)Maxillary first molar
D)Mandibular first premolar

Question 47

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
An H-shaped occlusal groove pattern is found on this primary tooth:

A)A
B)I
C)L
D)T

Question 48

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
Of the following primary teeth, which one erupts first?

A)Maxillary canine
B)Mandibular first molar
C)Maxillary first molar
D)Mandibular second molar

Question 49

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
During mastication, when a person chews on the right side, the right side is referred to as the BALANCING SIDE. The left side is referred to as the NON-WORKING SIDE.

A)Both statements are true
B)Both statements are false
C)The first statement is true, and the second statement is false
D)The first statement is false, and the second statement is true

Question 50

Use Case B to answer The Following questions
CASE BPermanent Dentition
An adult female client new to the dental practice expresses an interest in orthodontic treatment. The client has a moderate caries risk and a tongue thrust swallowing pattern. Three carious lesions on the proximal surfaces are recorded during the dental examination, and the client admits that she does not floss. She informs the hygienist that she has "a sore spot on the left side of her mouth" that hurts when she eats. Use Case B and Figures 5-29 and 5-30 to answer questions 13-20.
When tooth M exfoliates, it will be replaced by this permanent tooth:

A)# 22
B)# 23
C)# 26
D)# 27