Deck 57: Orofacial Clefts and Fractured Jaw

Question 1

Which orofacial cleft is the most severe?

A) Complete unilateral cleft palate
B) Complete unilateral cleft lip and palate
C) Complete bilateral cleft palate
D) Complete bilateral cleft lip and palate

Answer 1

Complete bilateral cleft lip and palate

Question 2

Fractures described as greenstick, multiple, or comminuted relate to soft-tissue injury. Fractures described as simple, compound, or complex relate to the severity of the break.

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.

Answer 2

Both statements are false.

Question 3

Which of the following enamel disturbances is associated with orofacial clefts?

A) Enamel hyperplasia
B) Enamel hypoplasia
C) Fluorosis
D) Amelogenesis imperfecta

Answer 3

Enamel hypoplasia

Question 4

Each of the following has a strong association with the occurrence of a nonsyndromic orofacial cleft except one. Which is the one exception?

A) Maternal smoking
B) Maternal alcohol consumption
C) Lack of folic acid intake
D) Lack of maternal nutrition
E) Familial history

Question 5

Which of the following is not a symptom of a dislocated jaw?

A) Protrusion of the jaw
B) Malocclusion
C) Inability to close mouth
D) Hemorrhage from oral cavity

Question 6

Caries incidence is more evident in the primary dentition. Which of the following is least likely to be affected?

A) Mandibular incisors
B) Maxillary incisors
C) Teeth adjacent to the cleft
D) Maxillary and mandibular molars

Question 7

A multidisciplinary team works together to manage an orofacial cleft. Which specialist is the exception?

A) Periodontist
B) Pedodontist
C) Pediatrician
D) Prosthodontist

Question 8

Embryologic development of the upper lip occurs during week:

A) 2.
B) 3.
C) 4.
D) 5.
E) 6.

Question 9

The most commonly fractured facial bone is the:

A) nasal bone.
B) mandible.
C) maxilla.
D) zygoma.

Question 10

Which of the following is not a symptom of a fractured jaw?

A) Deformed mandible
B) Malocclusion
C) Painful swelling at injury site
D) Difficulty closing

Question 11

Orofacial clefts are prevalent among various ethnic populations. Which of the following populations has the lowest prevalence?

A) African Americans
B) Non-Hispanic whites
C) North American Indians
D) Asian/Pacific Islanders

Question 12

Orthognathic surgery is indicated as a secondary corrective surgery for orofacial clefts. Which of the following is not a reason for surgery?

A) Maxillary deficiency
B) Mandibular deficiency
C) Malocclusion
D) Lip or nasal deformity

Question 13

Orofacial clefts are one of the most common craniofacial congenital defects. The presence of an orofacial cleft most likely indicates the presence of a syndrome.

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 14

Which of the following is NOT a sign of a fractured jow?

A) deformed, crooked or shifted mandible.
B) malocclusion of the dentition.
C) difficulty breathing.
D) numbness in the chin and lower lip.

Question 15

Embryologic development of the palate is complete by week:

A) 9.
B) 10.
C) 11.
D) 12.
E) 13.

Question 16

Facial fractures can result from several types of etiologies. Which one is common for adults and children?

A) Falls
B) Assaults
C) Bicycle accidents
D) Motor vehicle accidents

Question 17

There is a female predominance for orofacial clefts that involve:

A) cleft lip only.
B) cleft palate only.
C) cleft lip and palate.
D) none of these; there is no female predominance.

Question 18

The most common problem associated with orofacial clefts that children may experience is:

A) malocclusion.
B) speech disorders.
C) middle ear infections.
D) bottle or breast-feeding.

Question 19

Palate development progresses from the:

A) anterior to posterior.
B) posterior to anterior.
C) medial nasal process to maxillary process.
D) lateral palatine process to the medial nasal process.

Question 20

An individual suffers a blow to the head, specifically the mandible, during an altercation with another person, and is rendered unconscious. What should be the initial response?

A) Call 911 for emergency personnel.
B) Secure the airway, breathing, and circulation.
C) Transport the individual to a healthcare facility.
D) Contact their physician or dentist.

Question 21

An individual suffering from a fractured jaw and subsequent surgery will experience what percentage loss of body weight?

A) 2%
B) 5%
C) 10%
D) 15%

Question 22

Select three items characterizing Pierre Robin sequence.

A) Cleft lip only
B) Cleft palate only
C) Cleft lip and palate
D) Macrognathia
E) Micrognathia
F) Glossitis
G) Glossodynia
H) Glossoptosis

Question 23

Facial fractures resulting from motor vehicle accidents can be prevented, because wearing seat belts and obeying speed limits are safety measures.

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

Question 24

A periodontal condition that should be expected during immobilization is called:

A) caries.
B) gingivitis.
C) sensitivity.
D) periodontal pockets.

Question 25

Select five items associated with an increased risk of a woman having a child affected with an orofacial cleft.

A) Sex of the developing fetus
B) Age of family members with clefts
C) Race of mother and father
D) Number of family members with clefts
E) Size of cleft affecting other family members
F) Type of cleft affecting other family members
G) Relationship level of family members with a cleft to developing fetus

Question 26

The disturbance or underdevelopment of the bone on the affected side of the fracture is called:

A) ankylosis.
B) malunion.
C) nonunion.
D) osteomyelitis.

Question 27

Infection is the main complication of facial fractures. Teeth in the line of the fracture increase the risk of infection.

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 28

Surgical treatment of a fractured jaw that involves wiring the mandibular and maxillary arches usually lasts _____ week(s).

A) less than 1
B) 1 to 3
C) 4 to 8
D) 9 to 11

Question 29

During immobilization, dentifrices that are recommended to limit demineralization should contain potassium nitrate. Dentifrices aiding with tooth sensitivity should contain sodium fluoride.

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.