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A patient experiences pain and some
gingival swelling in the anterior segment
of the mandible. The mandibular lateral
incisor has a shallow restoration, is tender
to percussion and gives a positive
response to the electric pulp tester. There
is some mobility. The most likely
diagnosis is

lateral periodontal abscess.
NDEB released questions set 1

For a cast gold restoration, a gingival
bevel is used instead of a shoulder because
a bevel
1. protects the enamel.
2. increases retention.
3. improves marginal adaptation.
4. increases the thickness of gold.

(1) and (3)
NDEB released questions set 1

For composite resin preparations, cavosurface enamel margins are bevelled because
1. a bevelled margin produces a more favorable surface for etching.
2. a bevelled margin improves the edge strength of the composite resin.
3. after etching, the bonding agent reduces microleakage.
4. the procedure eliminates the need to polish the restoration.

(1) and (3)
NDEB released questions set 1

In restoring occlusal anatomy, the protrusive condylar path inclination has its primary influence on the morphology of

mesial inclines of mandibular cusps and distal inclines of maxillary cusps.
NDEB released questions set 1

In composite resin restorations, polycarboxylate cements are used as a base because they are

biocompatible.
NDEB released questions set 1

In the restoration of a tooth, cavity varnish reduces

ion migration from amalgam to tooth.
NDEB released questions set 1

Fractured incisal angles in the permanent teeth of adolescent patients are best restored using

acid etch composite resin techniques.
NDEB released questions set 1

A patient complains of acute pain 24 hours after the insertion of a restoration in a tooth with no pre-existing periapical pathology. The tooth is vital and tender to percussion. The radiograph will show

none of the above.
NDEB released questions set 2

Which of the following procedures will increase the retention of a Class III composite resin restoration in primary incisor and canine teeth?

Using labial or lingual dovetails.
NDEB released questions part 2 set 1

After completion of root canal therapy on a maxillary first premolar with moderate mesial and distal lesions and intact buccal and lingual surfaces, the conservative restoration of choice is a/an

MOD gold onlay.
NDEB released questions part 2 set 1

In the restoration of the proximal surfaces of posterior teeth, periodontal involvement is most likely to develop when the restoration

has an inadequate contact
NDEB released questions part 2 set 1

A lower molar requiring a crown has an extensive MOD amalgam restoration. The crown margin should be placed

1mm apical to the amalgam margin.
NDEB released questions part 2 set 1

What is the best predictor of success for a composite resin restoration

Presence of enamel on the entire periphery
NDEB released questions part 2 set 1

Most of the problems associated with direct posterior composite resin restorations are related to

polymerization shrinkage.
NDEB released questions part 2 set 1