MDS PREP
Inferior alveolar nerve block is given in
1. Retromolar area
2. Pterygomandibular space
3. Submandibular space
4. Submental space
Oral Surgery
Answer: 2
Inferior alveolar nerve block is given in the pterygomandibular space.
The blood product of choice for treatment of haemophilics is
1. Fresh blood
2. Cryoprecipitate
3. Fresh frozen plasma
4. Plasma
Oral Surgery
Answer: 2
Cryoprecipitate is the blood product of choice for treatment of haemophilics, as
it is rich in Factor VIII, which is deficient in this condition. It is used to
control bleeding during surgical procedures.
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.
Gillies approach for reduction of zygomatic fractures is done through
1. Temporal fossa
2. Infra temporal fossa
3. Infra orbital fossa
4. All of the above
Oral Surgery
Answer: 1
The temporal fossa is located on the side of the skull, above the zygomatic arch and lateral to the orbit. The Gillies approach involves an incision in the temporal region to access the zygomatic bone, which is then manipulated to reduce the fracture and restore its normal anatomical position. This approach is commonly used in oral and maxillofacial surgery for the management of complex zygomatic fractures.
The tips of anatomic forceps should be placed
1. On the crown portion
2. At the junction of clinical and anatomical crowns
3. Near junction of apical and middle thirds of clinical crown
4. On the root surface as far apically as possible
Oral Surgery
Answer: 4
The tips of anatomic forceps should be placed on the root surface as far apically as possible.
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.
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.
Anterior palatine nerve is anaesthetized by anterior palatine nerve block. The subjective symptoms include
1. Feeling of numbness in the posterior palate
2. Feeling of numbness in the anterior part of the palate near the incisors
3. Feeling of numbness of whole palate
4. Little or no subjective symptoms
Oral Surgery
Answer: 1
Feeling of numbness in the posterior palate. An anterior palatine nerve block
typically anesthetizes the palatal mucosa and soft tissues anterior to the
second premolars, including the palatal mucosa of the incisor and canine areas.
The numbness felt in the posterior palate is usually due to diffusion of the
anesthetic solution to the adjacent greater palatine nerve, which innervates the
palatal mucosa in the molar area.