MDS PREP
The following anatomical landmarks are useful in the closed mouth approach of mandubular nerve block except
1. Occlusal plane of occluding teeth
2. Anterior border of ramus
3. Mucogingival junction of the mandibular teeth
4. A & B
Oral Surgery
Answer: 3
The closed mouth approach of mandibular nerve block relies on the anatomical
landmarks of the occlusal plane of occluding teeth and the anterior border of
the ramus. The mucogingival junction is not a relevant landmark for this
technique.
A contraindication to local infiltration technique
1. Hypertension
2. Diabetic patient in whom urine sugar present
3. Infection in the arch
4. Kidney problems
Oral Surgery
Answer: 3
Local infiltration is a safe and effective technique for achieving anesthesia in
most situations. However, it is contraindicated in the presence of infection in
the arch because it can spread the infection further or lead to complications
like an abscess. Hypertension and kidney problems are not direct
contraindications to local anesthesia, but they may require careful monitoring
of the patient's condition. Diabetes with urine sugar present does not directly
contraindicate the use of local anesthetics unless there are severe
complications or neuropathy involved.
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.
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.
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.
Usually hydrolysis of amide type of local anaesthetic salts is facilitated by
1. Tissue pH above 7.0
2. Tissue pH between 5.0 and 7.0
3. Tissue pH below 5.0
4. None of the above
Oral Surgery
Answer: 1
Hydrolysis of amide type of local anaesthetic salts is facilitated by tissue pH above 7.0.
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.
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.