Question 1
Which of the following statements regarding treatment of a tooth manifesting with a sinus
tract is true?
A. Treat with conventional (nonsurgical) endodontic therapy.
B. Antibiotics are not needed.
C. The sinus tract should heal in 2 to 4 weeks after conventional root canal therapy.
D. If the sinus tract persists after root canal therapy, perform root end surgery with root end
filling.
E. All of the above
CORRECT ANSWER
E(. All of the above)
Question 2
Which of the following is *not* a property of NaOCl?
A. Chelation
B. Tissue dissolution at higher concentrations
C. Microbicidal activity
D. Flotation of debris and lubrication
CORRECT ANSWER
A(. Chelation)
Question 3
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,While performing nonsurgical endodontic therapy, you detect a ledge. What should you
do?
A. Use a smaller instrument and get by the ledge
B. Fill as far as you have reamed
C. Use a small round bur and remove the ledge
D. Continue working gently to remove the ledge
CORRECT ANSWER
A(. Use a smaller instrument and get by the ledge)
Question 4
Which perforation location has the best prognosis?
A. Coronal third of root
B. Apical third of root
C. Chamber floor
D. Middle third of root
CORRECT ANSWER
B(. Apical third of root)
Question 5
A classic teardrop-shaped apical lesion on a radiograph can indicate a vertical root
fracture. The prognosis of a vertical root fracture is hopeless, and the tooth should be
extracted.
A. The first statement is true, and the second statement is false.
B. The first statement is false, and the second statement is true.
C. Both statements are true.
D. Both statements are false.
CORRECT ANSWER
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, C(. Both statements are true.)
Question 6
A patient presents with a chief complaint of swelling in the mandibular left quadrant that
started 2 days ago and developed quickly. The patient has a mild fever with malaise, and
clinical examination revealed localized fluctuant swelling in the buccal vestibule of teeth
#18 and #19. Tooth #19 is nonresponsive to thermal testing and exhibits moderate pain to
percussion. Radiographic findings reveal a slight widened PDL space. Based on these
findings, the most likely apical diagnosis is ____.
CORRECT ANSWER
Acute apical abscess
Question 7
Prolonged, unprovoked night pain suggests which of the following conditions of the pulp?
A. Pulpal necrosis
B. Mild hyperemia
C. Reversible pulpitis
D. Periodontal abscess
CORRECT ANSWER
A(. Pulpal necrosis)
Question 8
The pathognomonic symptom of symptomatic apical periodontitis is ____
A. Swelling
B. Intermittent pain
C. Tenderness to palpation
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, D. Tenderness to percussion
CORRECT ANSWER
D(. Tenderness to percussion)
Question 9
In differentiating between an endodontic abscess and periodontal abscess, first test ____.
A. Pulp vitality
B. Probing depths
C. Percussion sensitivity
D. Degree of mobility
CORRECT ANSWER
A(. Pulp vitality)
Question 10
Which of the following statements is *not* consistent with cracked tooth syndrome?
A. Symptoms are often variable because of direction, location, and extent of the crack.
B. Teeth with cracks may have erratic pain on mastication.
C. Pain is associated with release of pressure rather than increased biting force.
D. Pain, especially in response to cold, is a telltale sign.
E. Absence of pain rules out the presence of a crack.
CORRECT ANSWER
E(. Absence of pain rules out the presence of a crack.)
Question 11
4
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Which of the following statements regarding treatment of a tooth manifesting with a sinus
tract is true?
A. Treat with conventional (nonsurgical) endodontic therapy.
B. Antibiotics are not needed.
C. The sinus tract should heal in 2 to 4 weeks after conventional root canal therapy.
D. If the sinus tract persists after root canal therapy, perform root end surgery with root end
filling.
E. All of the above
CORRECT ANSWER
E(. All of the above)
Question 2
Which of the following is *not* a property of NaOCl?
A. Chelation
B. Tissue dissolution at higher concentrations
C. Microbicidal activity
D. Flotation of debris and lubrication
CORRECT ANSWER
A(. Chelation)
Question 3
1
@https://www.stuvia.com/user/thestudyvault
,While performing nonsurgical endodontic therapy, you detect a ledge. What should you
do?
A. Use a smaller instrument and get by the ledge
B. Fill as far as you have reamed
C. Use a small round bur and remove the ledge
D. Continue working gently to remove the ledge
CORRECT ANSWER
A(. Use a smaller instrument and get by the ledge)
Question 4
Which perforation location has the best prognosis?
A. Coronal third of root
B. Apical third of root
C. Chamber floor
D. Middle third of root
CORRECT ANSWER
B(. Apical third of root)
Question 5
A classic teardrop-shaped apical lesion on a radiograph can indicate a vertical root
fracture. The prognosis of a vertical root fracture is hopeless, and the tooth should be
extracted.
A. The first statement is true, and the second statement is false.
B. The first statement is false, and the second statement is true.
C. Both statements are true.
D. Both statements are false.
CORRECT ANSWER
2
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, C(. Both statements are true.)
Question 6
A patient presents with a chief complaint of swelling in the mandibular left quadrant that
started 2 days ago and developed quickly. The patient has a mild fever with malaise, and
clinical examination revealed localized fluctuant swelling in the buccal vestibule of teeth
#18 and #19. Tooth #19 is nonresponsive to thermal testing and exhibits moderate pain to
percussion. Radiographic findings reveal a slight widened PDL space. Based on these
findings, the most likely apical diagnosis is ____.
CORRECT ANSWER
Acute apical abscess
Question 7
Prolonged, unprovoked night pain suggests which of the following conditions of the pulp?
A. Pulpal necrosis
B. Mild hyperemia
C. Reversible pulpitis
D. Periodontal abscess
CORRECT ANSWER
A(. Pulpal necrosis)
Question 8
The pathognomonic symptom of symptomatic apical periodontitis is ____
A. Swelling
B. Intermittent pain
C. Tenderness to palpation
3
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, D. Tenderness to percussion
CORRECT ANSWER
D(. Tenderness to percussion)
Question 9
In differentiating between an endodontic abscess and periodontal abscess, first test ____.
A. Pulp vitality
B. Probing depths
C. Percussion sensitivity
D. Degree of mobility
CORRECT ANSWER
A(. Pulp vitality)
Question 10
Which of the following statements is *not* consistent with cracked tooth syndrome?
A. Symptoms are often variable because of direction, location, and extent of the crack.
B. Teeth with cracks may have erratic pain on mastication.
C. Pain is associated with release of pressure rather than increased biting force.
D. Pain, especially in response to cold, is a telltale sign.
E. Absence of pain rules out the presence of a crack.
CORRECT ANSWER
E(. Absence of pain rules out the presence of a crack.)
Question 11
4
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