MDS PREP
The amount of rate of distraction in osteogenesis distraction surgeries
1) 1mm/day
2) 2.5 mm/day
3) 5 mm/day
4) 10 mm/day
Oral Surgery
Answer: 1
The rate of distraction in osteogenesis distraction surgeries is typically 1 mm/day, allowing for gradual bone formation.
The elevators that employ both the lever and wedge principles during extraction of root tip are
1. Pott"s elevators and apex elevators
2. Apex elevators and straight elevator
3. Straight elevators and Pott"s elevators
4. Pott"s elevators and Cryer elevators
Oral Surgery
Answer: 2
The elevators that employ both the lever and wedge principles during extraction of root tip are apex elevators and straight elevator.
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.
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 Caldwell-Luc operation is performed on the
1. maxillary sinus
2. temporal space
3. frontal sinus
4. pharynx
Oral Surgery
Answer: 1
Caldwell-Luc Operation
The Caldwell-Luc operation is a surgical procedure
performed to access the maxillary sinus. It is often used to treat chronic
sinusitis or to remove cyst s or tumors from the maxillary sinus. The
procedure involves creating an opening in the canine fossa to allow drainage
and access to the sinus cavity. The other options listed do not pertain to
this specific surgical intervention.
Among the following which nerve innervates the buccal gingiva of the maxillary second premolar?
1. Anterior palatine nerve
2. Buccal nerve
3. Middle superior alveolar nerve
4. Posterior palatine nerve
Oral Surgery
Answer: 3
The middle superior alveolar nerve (MSA) is one of the branches of the maxillary
nerve that innervates the buccal gingival of the maxillary teeth, including the
second premolar. The anterior palatine nerve innervates the palatal aspect,
while the buccal nerve innervates the buccal mucosa and the anterior part of the
palate.
The effect of local anaesthesia can be increased by the addition of
1) Adrenaline
2) Isoprenaline
3) Dopamine
4) Felypressin
Oral Surgery
Answer: 1
Explanation:
Adrenaline (epinephrine) is commonly added to local anesthetics to prolong their effect and reduce bleeding in the area. It works by constricting blood vessels, which decreases the rate of absorption of the anesthetic into the bloodstream, thereby enhancing its duration of action.
Most commonly used local anaesthesia
1. 1: 20,000 xylocaine HCL
2. 1: 50,000 xylocaine HCL
3. 1: 10,000 xylocaine HCL
4. 1: 80,000 xylocaine HCL
Oral Surgery
Answer: 4
Most commonly used local anaesthesia is 1: 80,000 xylocaine HCL.