Endodontic NBDE part II UPDATED ACTUAL Questions and
CORRECT Answers
ENDODONTIC DIAGNOSIS
Which teeth do you perform pulp evaluation on? c. tooth, neighboring teeth, contra lateral tooth
a. tooth only
b. tooth and neighboring tooth
c. tooth, neighboring teeth, contralateral tooth
d. tooth, neighboring teeth, opposing tooth
When testing tooth for cold: test adjacent teeth, -Test adjacent teeth and contralateral teeth.
opposing teeth & contralateral teeth.
If an apical radiolucency is present for a long time with Asymp chronic periodontitis
no symptoms and no sinus tract associated with necrotic
pulp is
-Asymptomatic apical periodontitis
-Asymp chronic periodontitis
You have a tooth, no pulp, but periapical radiolucency, Refer to an endodontist
you do access and find no canal, what do you do?
A molar is super-erupted, but has irreversible pulpitis, - RCT & Crown (other choices were EXT, just do crown - this was tricky because to
what do you do? answer the question, you have to look at the patient dental chart and findings)
, Case: Patient with tooth that has sensitivity that lingers Irreversible pulpitis with acute periapical abscess (other choices were Irreversible
with thermal test, sinus tract, and positive to percussion, pulpitis with no acute periapical abscess, and 2 other choices with reversible
what does the pulpitis in them).
patient have?
Prolonged, unstimulated night pain suggests which of the A. Pulp necrosis
following conditions of the pulp?
A. Pulp necrosis
B. Mild hyperemia
C. Reversible pulpitis
D. No specific condition
Pulpal pain that only occur at night with no stimulation: Pulpal necrosis
Chronic periradicular abscess indicates: Necrotic pulp
ENDO TESTS -Percussion: presence of inflammation in PDL or not
-Palpation:spread of inflammation to periodontium from PDL or not
-EPT: Pulp vitality, responsiveness (necrosis or not). Electric Pulp Testing (EPT) An
electrical current can be applied to the tooth in order to generate an action
potential in the Ty pe Aδ fibers within pulp, eliciting a neurological response. Such
tests are conducted by applying a conducting medium (e.g. toothpaste) on a
dried tooth and placing the probe tip of an electric pulp tester on the surface of
the tooth closest to the pulp horn(s). The patient is then directed to hold the end
of the conducting probe to complete the circuit and asked to let go of the probe
when a ‘tingling’ sensation is felt. The use of electric pulp testing has been
questioned in patients with traditional cardiac pacemakers despite no evidence of
interferences in humans, particularly with more modern devices . Care must be
taken if using an electric pulp test on a tooth adjacent to metallic restorations, as
these can create electrical conduction and yield false negative results
-Thermal test (hot & cold): pulp vitality. Hot (irrev), cold (rev)
Which is incorrect? Do EPT for traumatic tooth
If you have pain, what would be the hardest to b. Irreversible pulpitis and mandibular
anesthetize? - With irreversible pulpitis, the teeth that are most difficult to anesthetize are the
a. Irreversible pulpitis and maxillary mandibular molars, followed by the mandibular
b. Irreversible pulpitis and mandibular premolars, the maxillary molars and premolars, and the mandibular anterior teeth.
c. Necrotic pulp and maxillary The fewest problems are in the maxillary anterior
d. Necrotic pulp and mandibular teeth
When heat is applied to the tooth, lingering pain for Irreversible pulpitis
several minutes indicates:
What is diagnosis for lingering pain to cold and sensitivity Irreversible pulpitis & acute periapical abscess
to percussion? - Usually periodontal abscess is sensitive to percussion, irreversible is usually
positive to percussion
CORRECT Answers
ENDODONTIC DIAGNOSIS
Which teeth do you perform pulp evaluation on? c. tooth, neighboring teeth, contra lateral tooth
a. tooth only
b. tooth and neighboring tooth
c. tooth, neighboring teeth, contralateral tooth
d. tooth, neighboring teeth, opposing tooth
When testing tooth for cold: test adjacent teeth, -Test adjacent teeth and contralateral teeth.
opposing teeth & contralateral teeth.
If an apical radiolucency is present for a long time with Asymp chronic periodontitis
no symptoms and no sinus tract associated with necrotic
pulp is
-Asymptomatic apical periodontitis
-Asymp chronic periodontitis
You have a tooth, no pulp, but periapical radiolucency, Refer to an endodontist
you do access and find no canal, what do you do?
A molar is super-erupted, but has irreversible pulpitis, - RCT & Crown (other choices were EXT, just do crown - this was tricky because to
what do you do? answer the question, you have to look at the patient dental chart and findings)
, Case: Patient with tooth that has sensitivity that lingers Irreversible pulpitis with acute periapical abscess (other choices were Irreversible
with thermal test, sinus tract, and positive to percussion, pulpitis with no acute periapical abscess, and 2 other choices with reversible
what does the pulpitis in them).
patient have?
Prolonged, unstimulated night pain suggests which of the A. Pulp necrosis
following conditions of the pulp?
A. Pulp necrosis
B. Mild hyperemia
C. Reversible pulpitis
D. No specific condition
Pulpal pain that only occur at night with no stimulation: Pulpal necrosis
Chronic periradicular abscess indicates: Necrotic pulp
ENDO TESTS -Percussion: presence of inflammation in PDL or not
-Palpation:spread of inflammation to periodontium from PDL or not
-EPT: Pulp vitality, responsiveness (necrosis or not). Electric Pulp Testing (EPT) An
electrical current can be applied to the tooth in order to generate an action
potential in the Ty pe Aδ fibers within pulp, eliciting a neurological response. Such
tests are conducted by applying a conducting medium (e.g. toothpaste) on a
dried tooth and placing the probe tip of an electric pulp tester on the surface of
the tooth closest to the pulp horn(s). The patient is then directed to hold the end
of the conducting probe to complete the circuit and asked to let go of the probe
when a ‘tingling’ sensation is felt. The use of electric pulp testing has been
questioned in patients with traditional cardiac pacemakers despite no evidence of
interferences in humans, particularly with more modern devices . Care must be
taken if using an electric pulp test on a tooth adjacent to metallic restorations, as
these can create electrical conduction and yield false negative results
-Thermal test (hot & cold): pulp vitality. Hot (irrev), cold (rev)
Which is incorrect? Do EPT for traumatic tooth
If you have pain, what would be the hardest to b. Irreversible pulpitis and mandibular
anesthetize? - With irreversible pulpitis, the teeth that are most difficult to anesthetize are the
a. Irreversible pulpitis and maxillary mandibular molars, followed by the mandibular
b. Irreversible pulpitis and mandibular premolars, the maxillary molars and premolars, and the mandibular anterior teeth.
c. Necrotic pulp and maxillary The fewest problems are in the maxillary anterior
d. Necrotic pulp and mandibular teeth
When heat is applied to the tooth, lingering pain for Irreversible pulpitis
several minutes indicates:
What is diagnosis for lingering pain to cold and sensitivity Irreversible pulpitis & acute periapical abscess
to percussion? - Usually periodontal abscess is sensitive to percussion, irreversible is usually
positive to percussion
