Module 17

Question 1

Ectopic teeth

Answer 1

teeth erupting or moving in wrong direction; often a consequence of an underdeveloped, crowded maxillary/mandibular arch.

Question 2

diastema

Answer 2

space in between teeth

Question 3

open bite

Answer 3

can be anterior or lateral. Teeth don’t overlap or touch.

Question 4

over jet

Answer 4

protrusive premaxilla with or without Angle Class II malocclusion (upper tooth way over the bottom tooth)

Question 5

crossbite

Answer 5

the lower molar outside of the upper molar.

*Missing teeth tend to be where the cleft is or was.

Question 6

Macroglossia

Answer 6

Abnormally large tongue

Question 7

Microglossia

Answer 7

• Tongue is resting between the lower teeth—it is abnormally small.
• Causes lack of development of the jaw (the mandible)
• This affects the development of the mandibular arch.
• Tongue usually helps spread the mandibular arch out but if the tongue is small the teeth move in.

Question 8

Ankyloglossia

Answer 8

• “tongue tied”

* fermium can be: too short; attached too far anteriorly; attached too broadly on inferior surfaces; combinations.

Question 9

When examining the hard palate look for:

Answer 9

• abnormal height (high or low)
• submucous cleft palate
• fistulas: some type of hole or inadequacy of tissue.

Question 10

T/F Fistulas occur in the hard palate

Answer 10

F, Fistulas can occur in the hard and soft palate

Question 11

Adequate movement to achieve vp closure can be detected intra-orally

Answer 11

False, requires instrumental evaluation

Question 12

T/F Enlarged palatine tonsils do not usually interfere with velopharyngeal closure

Answer 12

True, unless they expand superiorly into the velopharyngeal port.