NBDE Part II
Prolonged, unstimulated night pain suggests which of the following
conditions of the pulp?
a) Pulp necrosis
b) mild hyperemia
c) reversible pulpitis
d) no specific condition - ANS>a
Response to heat thermal testing indicates what pulpal condition? -
ANS>Irreversible pulpitis
Palpation tests the spread of inflammation from ____ to _____. -
ANS>PDL to periodontium
What pulpal condition/tooth would be hardest to anesthetize?
a) irreversible pulpitis on maxillary
b) irreversible on mandibular
c) necrosis on maxillary
d) necrosis on mandibular - ANS>b
What pulp test would be best on a tooth with a crown? - ANS>Cold
,What test is best to diagnosis irreversible pulpitis? - ANS>Cold/thermal
How do you test a tooth to differentiate between chronic and
supperative perio? - ANS>Percussion
What test is used to differentiate between endo and perio lesions? -
ANS>Percussion
What does a RL at the furc of a primary first molar in a 5 y/o usually
indicate?
a) erupting perm first premolar
b) necrotic pulp
c) normal anatomy - ANS>b
Apexification is done on a vital/nonvital tooth with a incomplete/open
apex. - ANS>Nonvital, incomplete
Apexogensis is done on a vital/nonvital tooth with a incomplete/open
apex. - ANS>Vital, open
13 y/o pt has a non-vital maxillary central. The apex is still open. What
should be done? - ANS>Apexification
,What is the most common reason for failure of replantation of avulsed
teeth? - ANS>External resorption
Which is most damaging to the PDL?
a) extrusion
b) intrusion
c) lateral luxation
d) avulsion - ANS>b
What tx should be done to a perm central that experienced trauma
resulting in intrusion of 5 mm? What if it is primary? - ANS>Pull to
normal position and splint; observe to let it re-erupt
What is the primary purpose of sodium hypochlorite? - ANS>Dissolve
necrotic tissue
Soidum hypochlorite is used in endo for all the following EXCEPT:
a) irrigation
b) germicide
c) dissolve organic material
d) chelation - ANS>d
What is NOT an advantage of stainless steel endo files?
, a) More flexible
b) less chance for breaking
c) allows the file to be centered in canal
d) aids in depth penetration - ANS>c
All are advantages of nickel titanium endo files over steel EXCEPT:
a) flexibility
b) bending memory
c) direction of the flutes - ANS>c
Which of the following is NOT an advantage of Ni-Ti endo files over
stainless steel?
a) maintains shape of the canal
b) flexibility
c) resistance to fracture - ANS>c
Which endo-involved case has the best prognosis?
a) perf in external resorption
b) perf in internal resorption
c) extruded gutta percha - ANS>b
What is the most common cell in a necrotic pulp? - ANS>PMN
Prolonged, unstimulated night pain suggests which of the following
conditions of the pulp?
a) Pulp necrosis
b) mild hyperemia
c) reversible pulpitis
d) no specific condition - ANS>a
Response to heat thermal testing indicates what pulpal condition? -
ANS>Irreversible pulpitis
Palpation tests the spread of inflammation from ____ to _____. -
ANS>PDL to periodontium
What pulpal condition/tooth would be hardest to anesthetize?
a) irreversible pulpitis on maxillary
b) irreversible on mandibular
c) necrosis on maxillary
d) necrosis on mandibular - ANS>b
What pulp test would be best on a tooth with a crown? - ANS>Cold
,What test is best to diagnosis irreversible pulpitis? - ANS>Cold/thermal
How do you test a tooth to differentiate between chronic and
supperative perio? - ANS>Percussion
What test is used to differentiate between endo and perio lesions? -
ANS>Percussion
What does a RL at the furc of a primary first molar in a 5 y/o usually
indicate?
a) erupting perm first premolar
b) necrotic pulp
c) normal anatomy - ANS>b
Apexification is done on a vital/nonvital tooth with a incomplete/open
apex. - ANS>Nonvital, incomplete
Apexogensis is done on a vital/nonvital tooth with a incomplete/open
apex. - ANS>Vital, open
13 y/o pt has a non-vital maxillary central. The apex is still open. What
should be done? - ANS>Apexification
,What is the most common reason for failure of replantation of avulsed
teeth? - ANS>External resorption
Which is most damaging to the PDL?
a) extrusion
b) intrusion
c) lateral luxation
d) avulsion - ANS>b
What tx should be done to a perm central that experienced trauma
resulting in intrusion of 5 mm? What if it is primary? - ANS>Pull to
normal position and splint; observe to let it re-erupt
What is the primary purpose of sodium hypochlorite? - ANS>Dissolve
necrotic tissue
Soidum hypochlorite is used in endo for all the following EXCEPT:
a) irrigation
b) germicide
c) dissolve organic material
d) chelation - ANS>d
What is NOT an advantage of stainless steel endo files?
, a) More flexible
b) less chance for breaking
c) allows the file to be centered in canal
d) aids in depth penetration - ANS>c
All are advantages of nickel titanium endo files over steel EXCEPT:
a) flexibility
b) bending memory
c) direction of the flutes - ANS>c
Which of the following is NOT an advantage of Ni-Ti endo files over
stainless steel?
a) maintains shape of the canal
b) flexibility
c) resistance to fracture - ANS>c
Which endo-involved case has the best prognosis?
a) perf in external resorption
b) perf in internal resorption
c) extruded gutta percha - ANS>b
What is the most common cell in a necrotic pulp? - ANS>PMN
