Exam (elaborations)

NDEB PRACTICE STUDY EXAM

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Uploaded on August 14, 2024
Number of pages 17
Written in 2024/2025
Type Exam (elaborations)
Contains Questions & answers

ndeb practice study exam

Institution NDEB
Course NDEB

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NDEB PRACTICE STUDY EXAM

The placement of a retentive pin in the proximal regions of
posterior teeth would most likely result in periodontal ligament
perforation in the - CORRECT ANSWER-mesial of a
mandibular first molar

Air water spray used as a coolant in high speed - CORRECT
ANSWER-will reduce clogging of cutting instruments

The proposed mechanism by which a calcium hydroxide
preparation initiates secondary dentin formation in direct pulp
cappings is by - CORRECT ANSWER-stimulating
undifferentiated cells of the tissue to differentiate into
odontoblasts

when resecting the apical aspect of a tooth during endodontic
apical surgery it is appropriate to - CORRECT ANSWER-place
an amalgam retrofill

For composite resin preparations cavosurface enamel margins
are bevelled because - CORRECT ANSWER-a bevelled
margin produces a more favorable surface for etching and after
etching the bonding ages reduces microleakage

what instruments can be used for placing gingival bevels on
cast gold inlay preparations - CORRECT ANSWER-margin
trimmers and carbide finishing burs

,What is the most probable postoperative complication of
intracoronal bleaching for a tooth that has an inadequate
internal seal - CORRECT ANSWER-external root resorption

fractured incisal angles in the permanent teeth of adolescent
patients are best restored using - CORRECT ANSWER-acid
etch composite resin techniques

What are the purposes of using occlusal splints - CORRECT
ANSWER-to change the pattern and degree of tactile afferent
neural impulses, to immobilize teeth and to prevent teeth from
disturbing occlusal sensory input

histologically a pulp polyp consists of - CORRECT ANSWER-a
mass of collagenous fibres, proliferating capillaries, fibroblasts

Treatment of primary herpetic gingivostomatitis should include -
CORRECT ANSWER-palliative treatment and control of
secondary infection

Teeth mobility may be due to - CORRECT ANSWER-excessive
occlusal force, decreases osseous support and periodontal
abscess

lichen planus occurs most frequently on the - CORRECT
ANSWER-buccal mucosa

enlargement of the gingiva described as idiopathic fibromatosis
is best described as - CORRECT ANSWER-hyperplasia

the primordial cyst probably results from - CORRECT
ANSWER-cystic degeneration of the stellate reticulum early in
the formation of the tooth

histological sections of a lesion removed from the apex of a
carious tooth show immature fibrous tissue and chronic

, inflammatory cells. Diagnosis - CORRECT ANSWER-periapical
granuloma

Radiographs of Garre's osteomyelitis show - CORRECT
ANSWER-thickening of the cortex

increasing kilovoltage - CORRECT ANSWER-more penetration

Oral lesions that fail to heal may be associated with -
CORRECT ANSWER-tuberculosis, syphilis, neoplasia,
diabetes

In dental radiology patient protection is most important for -
CORRECT ANSWER-pregnant women

a salivary calculus is a - CORRECT ANSWER-sialolith

which can cause a contact stomatitis - CORRECT ANSWER-
dentrifice, lipstick, acrylic, antibiotics

Acute maxillary sinusitis is associated with - CORRECT
ANSWER-pain in the posterior maxillary teeth, nasal discharge,
tenderness of posterior maxillary teeth to percussion, increase
of pain when bending over

the collimator of an xray tube - CORRECT ANSWER-restricts
the diameter of the x-ray beam

the quantitiy of radiation output in a dental x-ray apparatus is a
function of - CORRECT ANSWER-time and ma

a zinc phosphate cement on a radiograph - CORRECT
ANSWER-can be seen but is less radiopaque than amalgam

papillary hyperplasia under a denture is usually due to -
CORRECT ANSWER-ill fitting denture

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