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NEETMDS- Oral Surgery mcq
MDS PREP

Subjective symptom of buccal nerve block is 
 1. Numbness and tingling sensation of the buccal mucosa
 2. Numbness of the lingual mucosa near molars
 3. No subjective symptoms
 4. A & B
Oral Surgery Answer: 3

While the buccal nerve block is used to anesthetize the buccal mucosa and buccal
gingival tissues of the maxillary molars, the actual technique does not
typically produce any specific subjective symptoms in the patient other than the
sensation of the needle. The patient may feel numbness if the anesthetic
solution is inadvertently placed in the oral mucosa or if the block is done
improperly.


Among the following which is treatment of choice for infection with fluctuation in an afebrile patient (or) A patient has a localized infection with pus formation. Treatment of choice is
1) Administration of antibiotics
2) Application of hot packs to the area
3) Incision and drainage
4) Antibiotics administration followed by I & D
Oral Surgery Answer: 3

The treatment of choice for a patient with a localized infection and pus formation, especially if they are afebrile (without fever), is incision and drainage (I & D). This involves creating a small opening in the skin to allow the pus to drain out. While antibiotics can be used as an adjunctive therapy to prevent the spread of infection, they are not always necessary in the initial management of a localized abscess if it is managed effectively with I & D.

The following factors play a role and cause variations in susceptibility of sensory nerve fibers to local anaesthesia 
 1. Diameter of the nerve fiber
 2. Distance between nodes of Ranvier
 3. Length of nerve fiber
 4. All of the above
Oral Surgery Answer: 4

The following factors play a role and cause variations in susceptibility of sensory nerve fibers to local anaesthesia: diameter of the nerve fiber, distance between nodes of Ranvier, and length of nerve fiber.

In children jaw fractures are normally immobilized for
1. 3 months
2. 6-8 weeks
3. 3-4 weeks
4. 5-10 days
Oral Surgery Answer: 3

In children, the healing process for fractures is faster due to the high vascularity and rapid bone turnover in growing tissues. Mandibular fractures in children are typically immobilized for a shorter duration compared to adults, as prolonged immobilization can interfere with the growth of the jaw. Immobilization for 3-4 weeks is generally sufficient to allow proper healing without compromising growth.

Dislocation is treated by forcing the mandible 
 1. Upwards and backward
 2. Upwards and forwards
 3. Downwards and forwards
 4. Downwards and backwards
Oral Surgery Answer: 4

Dislocation is treated by forcing the mandible downwards and backwards.

Under general anaesthesia patient needs oropharyngeal 
 1. Lap pad
 2. 4 * 4 gauge
 3. Ferguson mouth gag
 4. Pick up forceps
Oral Surgery Answer: 2

Under general anaesthesia, a patient needs a 4 * 4 gauge.


Hypoglycaemia may occur in a patient taking insulin and undergoing extraction when 
 1. Extraction is done on empty stomach
 2. Patient had an infection
 3. Patient had no exercise in the morning
 4. None of the above
Oral Surgery Answer: 1

Hypoglycaemia may occur in a patient taking insulin and undergoing extraction
when the procedure is done on an empty stomach. This is because insulin lowers
blood sugar levels, and without food to balance the insulin's effect, the
patient could experience a dangerous drop in blood glucose. It is important to
ensure that the patient eats before the surgery and that glucose levels are
monitored.

Which of the following is preferred local anaesthetic technique for haemophilics 
 1. Nerve block
 2. Supraperiosteal
 3. Intraligamentary
 4. Field block
Oral Surgery Answer: 3

Intraligamentary anaesthesia is the preferred local anaesthetic technique for haemophilics.

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