MDS PREP
Patients with end-stage renal disease are of increased risk when undergoing extraction of teeth because they
1. Have an increased tendency to bleed
2. Are susceptible to infections
3. Are often on steroid therapy
4. All of the above
Oral Surgery
Answer: 4
Patients with end-stage renal disease are at increased risk during tooth
extraction due to several factors. They often have an increased tendency to
bleed due to platelet dysfunction and are susceptible to infections due to
compromised immunity. Additionally, they are often on steroid therapy, which can
affect wound healing and increase the risk of infection.
Maximum recommended dosage of lignocaine with 1:1,00,000 adrenaline subcutaneously is
1. 100 mg
2. 30 mg
3. 500 mg
4. 700 mg
Maximum recommended dosage of lignocaine with 1:1,00,000 adrenaline subcutaneously is 100 mg.
A dermatome is used
1. To remove scar tissue
2. To harvest skin grafts
3. To abrade skin which is pigmented
4. For pairing of lacerated soft tissue
Oral Surgery
Answer: 2
A dermatome is used to harvest skin grafts.
"Ash forceps" is commonly used for
1. Extraction of lower incisor
2. Extraction of upper canines
3. Holding tissues prior to biopsy
4. Holding vascular areas during surgery
Ash forceps are commonly used for extraction of lower incisor.
Which of the following is not a theory for local anaesthetic action
1. Membrane expansion theory
2. Calcium displacement theory
3. Electrical potential theory
4. None of the above
Oral Surgery
Answer: 4
Which of the following is not a theory for local anaesthetic action: None of the above.
The following is least toxic of all local anaesthetics
1. Tetracaine
2. Mepivacaine
3. Prilocaine
4. 2-Chloroprocaine
Oral Surgery
Answer: 4
The following is least toxic of all local anaesthetics: 2-Chloroprocaine.
The onset of action of lidocaine is
1. 1-2 minutes
2. 5-10 minutes
3. 3-5 minutes
4. 7-8 minutes
Oral Surgery
Answer: 3
The onset of action of lidocaine is 3-5 minutes.
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.