Deck 9: Dental Anomalies

Question 1

Which dental abnormality occurs when the lower teeth overlap the upper teeth buccally?

A)Open bite
B)Overbite
C)Lateral crossbite
D)Diastema
E)Anterior crossbite

Answer 1

C

Question 2

Which sounds are most likely to be affected by an anterior crossbite?

A)Labiodentals
B)Interdental sounds
C)Velars
D)Bilabials
E)Sibilants

Answer 2

Bilabials

Question 3

What is the term for the horizontal relationship of the upper to the lower incisors?

A)Labioversion
B)UnderJet
C)OverJet
D)Overbite
E)Diastema

Answer 3

C

Question 4

In general, at what age is the primary dentition complete?

A)12 to 18 months
B)18 to 24 months
C)24 to 30 months
D)30 to 36 months
E)3 to 4 years

Question 5

Which appliance can sometimes be helpful with speech therapy for correction of palatal-dorsal productions?

A)Arch appliance
B)Quad helix appliance
C)Palatal lift
D)Rapid palatal expander
E)Speech bulb

Question 6

How many teeth do children have? How many teeth do adults have?

A)24; 32
B)18; 26
C)20; 32
D)18; 32
E)20; 28

Question 7

Which of the following statements is true of buccal crossbite?

A)Occurs when the lingual cusps of all the maxillary posterior teeth are buccal to the mandibular teeth
B)Involves any combination of teeth distal to the canines and usually occurs because the maxilla is too narrow
C)Occurs when one or more maxillary teeth are positioned buccally such that the maxillary lingual cusps reside buccal to the mandibular cusps
D)All of the above
E)None of the above

Question 8

At about what age does an infant's first tooth primary lower incisors) begin to erupt?

A)4 months
B)6 months
C)8 months
D)10 months
E)12 months

Question 9

Which sounds are most likely to be affected by a protruding premaxilla?

A)Labiodentals
B)Interdental sounds
C)Lingual-alveolars
D)Bilabials
E)Sibilants

Question 10

What is the term for when the upper teeth are lingual to the lower teeth?

A)Labioversion
B)UnderJet
C)OverJet
D)Overbite
E)Diastema

Question 11

Which of the following occurs when one or more maxillary teeth fail to occlude with the opposing mandibular teeth?

A)Protruding maxilla
B)Crossbite
C)Posterior Crossbite
D)Open Bite
E)Ectopic Teeth

Question 12

Which of the following is not a dental anomaly associated with clefts?

A)Diastema
B)Rotated teeth
C)Missing teeth
D)Protruding premaxilla
E)Crossbite

Question 13

What is the term for the permanent teeth that replace the baby teeth?

A)Deciduous teeth
B)Incisor teeth
C)Succedaneous teeth
D)Wisdom teeth
E)Canine teeth

Question 14

Which of the following is true about the effect of missing teeth on speech?

A)There is never an effect on speech.
B)There is always an effect on speech.
C)The effect on speech depends on the size of the oral cavity.
D)Missing incisors will always cause a frontal lisp.
E)Missing teeth only cause problems with sibilant sounds.

Question 15

During which stage of dental development would palatal orthopedics be done?

A)Infant stage 0 to 12 months)
B)Primary dentition 1 to 6 years)
C)Early mixed dentition 6 to 9 years)
D)Late mixed dentition 9 to 12 years)
E)Adolescent dentition 12 to 18 years)

Question 16

What is the term that describes the part of the dental arch that is posterior to the canine teeth?

A)Labial
B)Buccal
C)Mesial
D)Distal
E)Lingual

Question 17

Which of the following is most commonly seen in individuals with a history of cleft lip and palate?

A)Class I occlusion: normal relationship of the molars and line of occlusion
B)Class I malocclusion: normal relationship of the molars, but line of occlusion incorrect
C)Class II malocclusion: mandibular retrusion and/or maxillary protrusion
D)Class III malocclusion: mandibular protrusion and/or maxillary retrusion
E)Class II malocclusion: mandibular protrusion and/or maxillary retrusion

Question 18

What is the term for the vertical overlap of the lower incisors over the upper incisors making the bite deep?

A)Underbite
B)UnderJet
C)OverJet
D)Overbite
E)Diastema

Question 19

What is the term for teeth that erupt in an abnormal position?

A)Supernumerary
B)Ectopic
C)Diastema
D)Crossbite
E)Malocclusion

Question 20

What group of sounds is most commonly affected by dental abnormalities?

A)Sibilants
B)Stops
C)Nasals
D)Velars
E)Glottals

Question 21

In which of the following cases is speech therapy always inappropriate?

A)When there are articulation placement errors and dental anomalies
B)When there are obligatory distortions only
C)When there are compensatory errors only
D)When there is a Class II malocclusion and there are errors on lingual-alveolar sounds
E)When there is Class III malocclusion and there are errors on velar sounds

Question 22

Which of the following would be considered an obligatory distortion due to a Class III malocclusion?

A)Frontal lisp
B)Lateral lisp
C)Pharyngeal fricative
D)Glottal stop
E)Velar fricative

Question 23

Which of the following would be considered a compensatory error due to a Class III malocclusion?

A)Frontal lisp
B)Lateral lisp
C)Pharyngeal fricative
D)Glottal stop
E)Velar fricative