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NEETMDS- Oral Surgery mcq
MDS PREP
Improper direction of the needle insertion during inferior alveolar nerve block results in
1) Facial nerve paralysis
2) Paraesthesia
3) Haematoma
4) Trismus
Oral Surgery Answer: 1

Penicillin is most effective against
1. anaerobic bacteria
2. gram-positive organisms
3. spirochetes
4. gram-negative organisms
Oral Surgery Answer: 2

Principles in treating fractures include
1) Reduction of fracture
2) Fixation of fracture and restoration of occlusion
3) Immobilisation
4) All of the above
Oral Surgery Answer: 4

Principles in treating fractures include reduction, fixation, and restoration of occlusion, all of which are essential for proper healing.

Most tuberosity reductions before denture construction requires
1) Primarily soft tissue (or) fibrous tissue removal
2) Large amount of bone removal
3) Relief from pterygoid hamulus
4) Some bony reduction in all instances
Oral Surgery Answer: 1

According to gate control theory of pain, large fiber impulses tend to
1) Bypass the central control process
2) Inhibit the effect of painful stimuli transmitted by small fibers
3) Both the above
4) None of the above
Oral Surgery Answer: 2

Action of lignocaine is affected by all except
1) pH at the site of injection
2) Blood flow at the site of injection
3) Vasoconstrictor in the LA solution
4) Action of cholinesterase at the site of injection
Oral Surgery Answer: 4

Nasopharyngeal angiofibroma occurs almost exclusively in
1. adolescent males
2. young females
3. infants
4. males past 60 years of age
Oral Surgery Answer: 1

Which of the following may result in interruptions in cardiac compressions?
1) Little changes in blood flow and blood pressure
2) A reduction of the blood flow and blood pressure to zero
3) Carbon dioxide buildup in the lungs
4) None of the above
Oral Surgery Answer: 2

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