NDEB EXAMBANK COMPLETE WITH
VERIFIED SOLUTIONS AND RATED A.
During apical surgical, an apicoectomy of
approximately 3mm is recommended because
A. most accessory and lateral canals will be
eliminated.
B. it will minimally affect the crown to root ratio.
C. a greater resection may expose a post in the
canal.
D. it will allow better access for retrofill
placement.
A. most accessory and lateral canals will be
eliminated.
Which of the following modifications to the standard
procedure for mixing gypsum products will increase
the compressive strength of the set material?
A. Adding a small amount of salt to the water
before mixing.
B. Decreasing the water/powder ratio by a small
amount.
C. Using warmer water.
D. Decreasing the mixing time.
B. Decreasing the water/powder ratio by a small
amount.
,Less water and more powder will increase compressive strength of material.
The risk of a health care worker contracting hepatitis
B through a needlestick injury from a chronic
hepatitis B carrier is increased when the patient's
serology report indicates the presence of
A. HBsAg.
B. anti-HBcAg.
C. HBeAg.
D. anti-HBsAg.
C. HBeAg.
After completion of root canal therapy on a
maxillary first premolar with moderate mesial and
distal lesions and intact buccal and lingual surfaces,
the restoration of choice is a/an
A. MOD composite resin.
B. MOD onlay.
C. MOD pin retained amalgam.
D. MOD bonded amalgam.
B. MOD onlay.
Shortly after the administration of an inferior
alveolar nerve block, a healthy adult patient rapidly
develops a facial rash. Which of the following signs
and symptoms should be watched for before
initiating the planned dental treatment?
,A. Pallor and perspiration.
B. Shortness of breath.
C. Hyperventilation.
D. Temperature elevation.
B. Shortness of breath.
Ground glass appearance is the classical description
of the radiographic appearance found in
A. acute osteomyelitis.
B. fibrous dysplasia.
C. early periapical osseous dysplasia (periapical
cemento-osseous dysplasia).
D. Paget's disease.
B. fibrous dysplasia.
The vibrating line of the palate
A. delineates the movement of the soft palate.
B. is always on the hard palate.
C. is a well-defined line across the palate.
D. is not a useful landmark in complete denture
fabrication.
A. delineates the movement of the soft palate.
The coronal collagen fibres of the periodontium are
A. circular.
B. transeptal.
C. supraperiosteal.
D. All of the above.
, D. All of the above.
An exchange of calcium ions between saliva and
enamel is
A. not affected by fluoride.
B. a component of remineralization and
demineralization.
C. not important in tooth structure.
D. not pH dependent.
B. a component of remineralization and
demineralization.
Which of the following physical properties would
be least important for an impression material for
partially edentulous patients?
A. Biocompatibility.
B. Dimensional stability.
C. Ease of manipulation.
D. Adhesion to calcium.
E. Elasticity.
D. Adhesion to calcium.
Which of the following conditions should NOT
commonly be treated during the mixed dentition
stage?
A. Anterior crossbite.
B. Posterior crossbite.
VERIFIED SOLUTIONS AND RATED A.
During apical surgical, an apicoectomy of
approximately 3mm is recommended because
A. most accessory and lateral canals will be
eliminated.
B. it will minimally affect the crown to root ratio.
C. a greater resection may expose a post in the
canal.
D. it will allow better access for retrofill
placement.
A. most accessory and lateral canals will be
eliminated.
Which of the following modifications to the standard
procedure for mixing gypsum products will increase
the compressive strength of the set material?
A. Adding a small amount of salt to the water
before mixing.
B. Decreasing the water/powder ratio by a small
amount.
C. Using warmer water.
D. Decreasing the mixing time.
B. Decreasing the water/powder ratio by a small
amount.
,Less water and more powder will increase compressive strength of material.
The risk of a health care worker contracting hepatitis
B through a needlestick injury from a chronic
hepatitis B carrier is increased when the patient's
serology report indicates the presence of
A. HBsAg.
B. anti-HBcAg.
C. HBeAg.
D. anti-HBsAg.
C. HBeAg.
After completion of root canal therapy on a
maxillary first premolar with moderate mesial and
distal lesions and intact buccal and lingual surfaces,
the restoration of choice is a/an
A. MOD composite resin.
B. MOD onlay.
C. MOD pin retained amalgam.
D. MOD bonded amalgam.
B. MOD onlay.
Shortly after the administration of an inferior
alveolar nerve block, a healthy adult patient rapidly
develops a facial rash. Which of the following signs
and symptoms should be watched for before
initiating the planned dental treatment?
,A. Pallor and perspiration.
B. Shortness of breath.
C. Hyperventilation.
D. Temperature elevation.
B. Shortness of breath.
Ground glass appearance is the classical description
of the radiographic appearance found in
A. acute osteomyelitis.
B. fibrous dysplasia.
C. early periapical osseous dysplasia (periapical
cemento-osseous dysplasia).
D. Paget's disease.
B. fibrous dysplasia.
The vibrating line of the palate
A. delineates the movement of the soft palate.
B. is always on the hard palate.
C. is a well-defined line across the palate.
D. is not a useful landmark in complete denture
fabrication.
A. delineates the movement of the soft palate.
The coronal collagen fibres of the periodontium are
A. circular.
B. transeptal.
C. supraperiosteal.
D. All of the above.
, D. All of the above.
An exchange of calcium ions between saliva and
enamel is
A. not affected by fluoride.
B. a component of remineralization and
demineralization.
C. not important in tooth structure.
D. not pH dependent.
B. a component of remineralization and
demineralization.
Which of the following physical properties would
be least important for an impression material for
partially edentulous patients?
A. Biocompatibility.
B. Dimensional stability.
C. Ease of manipulation.
D. Adhesion to calcium.
E. Elasticity.
D. Adhesion to calcium.
Which of the following conditions should NOT
commonly be treated during the mixed dentition
stage?
A. Anterior crossbite.
B. Posterior crossbite.
