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NEETMDS- Endodontics mcq
MDS PREP
The origin of calcium ions in a calcific bridge formed by calcium hydroxide is
1) From calcium hydroxide itself
2) From underlying dentin
3) Through blood stream via pulp
4) From periapical tissues
Endodontics Answer: 3

Ca(OH) is given
1) In weeping canal
2) When there is bleeding from root canals
3) As a sterilizing agent
4) To remove or dissolve periapical debris
Endodontics Answer: 1

The teeth that are more prone to perforation by slight mesial and distal deviation of a bur are
1) Mandibular incisors & maxillary first premolars
2) Maxillary first premolars & mandibular molar
3) Maxillary incisors & mandibular molars
4) Maxillary molar & mandibular first premolar
Endodontics Answer: 1

Blood-borne seeding of bacteria into an area of previously damaged or irritated pulp with a resultant inflammation is known as
1) Bacterial endocarditis
2) Anchoretic pulpitis
3) Chronic hyperplastic pulpitis
4) Ulcerative pulpitis
Endodontics Answer: 2

Discolouration of the teeth results from
1) Decomposition of the pulp
2) Filling materials
3) Haemorrhage following pulp extirpation
4) All of the above
Endodontics Answer: 4

Electric pulp test
1) Requires more current for anterior teeth
2) Requires more current for posterior teeth
3) Same response
4) Better in inflamed teeth
Endodontics Answer: 2

Extirpation of pulp in incisor involved in class III carious exposures can be achieved
1) Via the lesion
2) By triangular access cavity preparation
3) Via labial surface
4) None of the above
Endodontics Answer: 2

Recapitulation 
 1. Uses large files to the flare the root cananl
 2. Removing debris with a smaller instrument than the instrument that goes to the apex
 3. Use of large files to flare the root canal but in between use of small instrument to confirm the initial length
 4. All of the above
Endodontics Answer: 3

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