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Tooth mobility may be due to
1. excessive occlusal force.
2. decreased osseous support.
3. periodontal abscess.
4. gingival inflammation.
(1) (2) (3)
NDEB released questions set 1
The beaks of extraction forceps
should fit the crown of the tooth.NDEB released questions part 2 set 1
Among the following, which may be associated with root resorption?
1. Excessive orthodontic forces.
2. Periapical granuloma.
3. Cementoma.
4. Hypercementosis.
5. Traumatic injury.
(1) (2) (5)
NDEB released questions set 2
Which of the following cements can chemically bond to enamel?
1. Zinc phosphate cement.
2. Polycarboxylate cement.
3. Reinforced zinc oxide eugenol cement.
4. Glass ionomer cement.
(2) and (4)
NDEB released questions set 2
Tooth mobility may be due to
1. excessive occlusal force.
2. decreased osseous support.
3. periodontal abscess.
4. gingival inflammation.
(1) (2) (3)
NDEB released questions 2012 online set 1
When a simple tipping force is applied to the crown of a single-rooted tooth, the centre of rotation is located
within the apical half of the rootNDEB released questions part 2 set 4
In congestive heart failure, a glycoside that increases the force of myocardial contraction is
digitoxinNDEB released questions part 2 set 6
Root resorption of permanent teeth may be associated with
1. excessive orthodontic forces.
2. chronic periradicular periodontitis.
3. traumatic injury.
4. periapical cemento-osseous dysplasia.
(1) (2) (3)
NDEB released questions part 2 set 10
When a simple tipping force is applied to the crown of a single-rooted tooth, the centre of rotation is located
within the apical half of the rootNDEB released questions part 2 set 11
When designing a removable partial denture, changing the tilt of the cast on the surveyor alters the
1. path of insertion of the planned removable partial denture.
2. the position of the survey line on the cast.
3. the undercut and non-undercut areas.
4. the direction of forces applied to the partial denture
(1) (2) (3)
NDEB released questions part 2 set 12
When probing a healthy gingival sulcus with a 20g force, the tip of the periodontal probe is most likely located
at the level of the junctional epithelium.NDEB released questions part 2 set 12
An open proximal contact on an amalgam restoration could have been caused by
1. inadequate wedging.
2. overtightening the matrix band.
3. inadequate condensing forces.
4. simultaneous placement of adjacent proximal restorations.
(1) (2) (3)
NDEB released questions part 2 set 12
For which of the following teeth is the risk of root fracture increased if a rotational force is used during extraction?
Upper first bicuspid.NDEB released questions part 2 set 13
Excessive orthodontic force used to move a tooth may
1. cause hyalinization.
2. cause root resorption.
3. crush the periodontal ligament.
4. impair tooth movement
All of the above.
NDEB released questions part 2 set 13
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