MDS PREP
For extraoral maxillary nerve block the target is
1. Anterior to lateral pterygoid plate
2. Posterior to lateral pterygoid plate
3. Pterygomandibular fossa
4. Pterygomandibular fissure
Oral Surgery
Answer: 1
Anterior to lateral pterygoid plate. In the extraoral maxillary nerve block, the
needle is inserted at the posterior aspect of the condylar neck and directed
anteriorly to target the pterygomandibular space, which contains the maxillary
nerve and its branches. This technique is used to anesthetize the molars and
premolars of the upper jaw and is also known as the Vazirani-Akinosi technique.
The elevator can be used to advantage when
1. The tooth to be extracted is isolated
2. The interdental bone is used as a fulcrum
3. The adjacent tooth is not to be extracted
4. Multiple adjacent teeth are to be extracted
Oral Surgery
Answer: 4
The elevator can be used to advantage in scenarios where multiple adjacent teeth
are to be extracted, as it provides a more precise and controlled method of
elevating the teeth, especially when they are closely spaced or have converging
roots.
Which of the following is not an advantage of marsupialisation
1) Exposure of very little bone
2) Preservating of vital structure
3) Rapid healing
4) Conserve surgical structures
Oral Surgery
Answer: 3
Marsupialization is a surgical procedure often used for cysts or abscesses. While it does have several advantages, such as minimal exposure of bone and preservation of vital structures, it is not typically associated with rapid healing. The healing process can be prolonged compared to other surgical techniques because it involves creating a permanent opening for drainage, which may take time to close completely.
Hilton"s method deals with
1) Decompression of a cyst
2) Drainage of an abscess
3) Biopsy removal
4) Preanaesthetic check-up
Oral Surgery
Answer: 2
Hilton's method is a surgical technique primarily used for the drainage of abscesses. This method involves creating an incision to allow the pus to escape, thereby relieving pressure and promoting healing.
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.
Mental foramen opening is directed in
1. Forward and medial direction
2. Backward and medial direction
3. Forward and lateral direction
4. Backward and lateral direction
Oral Surgery
Answer: 4
The mental foramen is found on the buccal aspect of the mandible, typically
between the first and second premolars or the second premolar and the first
molar. The opening of the mental foramen is directed backward and lateral,
allowing the mental nerve to exit and innervate the lower lip and chin.
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.
A patient who is a grand mal epileptic requires emergency extraction. One should
1. Advise the patient that procedure requires admission to the hospital
2. Proceed with extraction using xylocaine without adrenaline
3. Proceed with extraction if anticonvulsive medication is employed by patient
4. None of the above
Oral Surgery
Answer: 3
In a grand mal epileptic patient requiring emergency extraction, it is essential
to proceed with caution and ensure that the patient is on a stable
anticonvulsive medication regimen. The patient should be monitored closely and
have immediate access to medical support in case of a seizure during the
procedure.