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NEETMDS- Endodontics mcq
MDS PREP

First line of treatment in the case of an acute apical abscess with swelling is 
1. Establish drainage
2. Prescribe antibiotics
3. Prescribe analgesics
4. No treatment, reassurance

Endodontics Answer: 1

EDTA, which is an active ingredient in root canal preparation, has its principal action in
1) Decalcification of dentin
2) Dissolution of necrotic debris
3) Lubrication of the canal during instrumentation
4) All of the above are correct
Endodontics Answer: 4

The blue coloured reamer is numbered as
1) 6 size of instrument
2) 25 and 50 size of instrument
3) 30 and 60 size of instrument
4) 10 size of instrument
Endodontics Answer: 3

Ideally the length of the dowel and the dowel preparation should be
1) 10 mm below the cervical line
2) 2/3rds the length of the root
3) Equal to the length of the clinical crown
4) One-thirds the length of the canal
Endodontics Answer: 2

The tooth is tender on vertical percussion. It may be due to 
 1. Osteomyelitis
 2. Periapical inflammation
 3. Necrotic pulp
 4. Angular bone loss
Endodontics Answer: 2

Pultomy with calcium hydroxide is indicated in all except
1) Trauma on permanent teeth with wide open apex
2) Asymptomatic pulp exposure on posterior permanent teeth with open apices
3) Caries in teeth resulting in continuous pain irreversible pulpitis
4) None of the above
Endodontics Answer: 3

Aspirin in contraindicated in all of the following except
1) Gouty arthritis
2) Pencillin therapy
3) Diabetes mellitus
4) Anti-neoplastic therapy
Endodontics Answer: 2

Gutta-percha cones should not be used for root canal filling in
1) Primary teeth
2) Permanent mandibular last molars
3) Teeth with wide root canal
4) Teeth with curved roots
Endodontics Answer: 1

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