MDS PREP
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.
Which of the following is complication of an open fracture
1) Malunion
2) Nonunion
3) Infection
4) Crepitation
Oral Surgery
Answer: 3
An open fracture is a fracture that communicates with the outside environment, typically through a wound. This increases the risk of bacterial infection
The direction of the bevel of the chisel during bone cutting is
1. Away from the bone to be sacrificed
2. Towards the bone to be sacrificed
3. Independent of the bone to be sacrificed
4. Parallel to stress lines
Oral Surgery
Answer: 2
The direction of the bevel of the chisel during bone cutting is towards the bone to be sacrificed.
For extraction of mandibular molar, anaesthesia is given to act on
1. Inferior alveolar nerve
2. Buccal nerve
3. Lingual nerve
4. Masseteric nerve
Oral Surgery
Answer: 1
For extraction of mandibular molar, anaesthesia is given to act on the inferior alveolar nerve.
The mechanical advantage obtained from the wheel and axle principle of elevator is
1. 2.5
2. 3
3. 4.6
4. 6
Oral Surgery
Answer: 3
The mechanical advantage obtained from the wheel and axle principle of elevator is 3.
Open reduction and internal fixation of fracture fragments in the older patients is risky because
1) Of their old age, they less likely tolerate the major procedure under general anaesthesia
2) Fixation is difficult because bone will become more dense as age advances
3) Both of the above are correct
4) None of the above are correct
Oral Surgery
Answer: 4
The risk associated with open reduction and internal fixation (ORIF) in older patients is not solely due to their age or increased bone density. It's important to consider their overall health, including potential comorbidities and reduced healing capacity. The risks might be higher due to factors like poor bone quality, increased surgical time, and the potential for complications such as infection and nonunion.
Each cartridge contains how many ml of anaesthetic solution
1. 0.9 mL
2. 1.2 mL
3. 1.8 mL
4. 2.2 mL
Oral Surgery
Answer: 3
Each cartridge contains 1.8 mL of anaesthetic solution.
Lidocaine is used more commonly in dentistry because lidocaine
1. Causes less depression of CNS
2. Causes less cardiovascular collapse
3. Causes lesser incidence of allergic reactions
4. Is 50 times more potent than procaine
Oral Surgery
Answer: 3
Lidocaine is used more commonly in dentistry because it causes lesser incidence of allergic reactions.