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Martin Luther King, Jr. Day

Third Monday of January
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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

In determining the ideal proximal outline
form for a Class II amalgam cavity
preparation in a molar the
1. axial wall should be 1.5mm deep.
2. gingival cavosurface margin must
clear contact with the adjacent tooth.
3. proximal walls diverge occlusally.
4. facial and lingual proximal
cavosurface margins must just clear
contact with the adjacent tooth.

(2) and (4)
NDEB released questions set 1

During matrix placement for a Class II
cavity preparation, a wedge is placed to
1. separate the teeth.
2. adapt the matrix to the gingival
margin.
3. aid in the creation of a contact.
4. absorb moisture.

(1) (2) (3)
NDEB released questions set 1

During matrix placement for a Class II cavity preparation, a wedge is placed to
1. separate the teeth.
2. adapt the matrix to the gingival margin.
3. aid in the creation of a contact.
4. absorb moisture.

(1) (2) (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

Which of the following instruments can be used for placing gingival bevels on inlay preparations?
1. Margin trimmers.
2. Enamel hatchets.
3. Carbide finishing burs.
4. Small diamond disks.

(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

The muscle primarily responsible for moving the mandible to a lateral position is the

lateral (external) pterygoid.
NDEB released questions set 1

Treatment of primary herpetic gingivostomatitis should include
1. palliative treatment.
2. steroid therapy.
3. control of secondary infection.
4. application of dilute hydrogen peroxide.

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

Radiographically, a benign bone neoplasm can be differentiated from a malignant one because in the benign lesion
1. the margins are irregular and fade into the surrounding bone.
2. the cortex remains intact.
3. the margins are defined and demarcated.
4. there can be perforation of the periosteum.

(2) and (3)
NDEB released questions set 2

Which of the following landmarks are recognizable in periapical radiographs of the mandible?
1. External oblique ridge.
2. Coronoid process.
3. Mylohyoid ridge.
4. Mental foramen.
5. Incisive canal.

(1) (3) (4)
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

A laboratory remount of processed dentures is done in order to correct occlusal disharmony produced by errors primarily in the

processing of acrylic.
NDEB released questions part 2 set 1