MDS PREP
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.
The treatment of choice for TMJ ankylosis is
1. exercise and warm packs
2. condylectomy
3. steroid therapyv
4. sclerosing solutions
Oral Surgery
Answer: 2
The treatment of choice for TMJ ankylosis is condylectomy. This is a surgical procedure where the ankylotic tissue is removed from the temporomandibular joint, allowing for the restoration of normal joint movement.
Exercise and warm packs may be used as adjunctive treatments to help manage the symptoms of TMJ ankylosis and maintain joint mobility, but they are not the primary treatment for the condition itself. Steroid therapy and sclerosing solutions might be used in some cases, but condylectomy is the definitive surgical procedure to address the ankylosis directly by removing the bony or fibrous tissue that is obstructing the joint..
Rongeur is commonly used to
1. Cut the bone
2. Extract third molars
3. Place the sutures in the areas where access is limited
4. None of the above
Oral Surgery
Answer: 1
Rongeur is commonly used to cut the bone.
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.
In gate control theory of pain, pain is mainly modulated by
1. Substantia gelatinosa
2. B fibers
3. C fibers
4. Transmission system
Oral Surgery
Answer: 1
In gate control theory of pain, pain is mainly modulated by the substantia gelatinosa.
Compbell line is seen in
1) Transpharyngeal view
2) Transorbital view
3) Occipitomental view
4) Towne view
Oral Surgery
Answer: 3
The Campbell line is an important anatomical reference line
used in radiology, particularly in the context of the occipitomental
view (also known as the Water's view). This line is drawn from the
outer canthus of the eye to the midpoint of the maxillary sinus and is used to
assess the position of the maxillary sinuses and other related structures in the
skull.
Occipitomental view: This view is commonly used in
maxillofacial imaging to visualize the maxillary sinuses, orbits, and nasal
cavity. The Campbell line helps in evaluating the relationship of these
structures.
Transpharyngeal view: This view is used to visualize the
pharynx
Transorbital view: This view focuses on the orbits and
surrounding structures
Towne view: This view is used to visualize the occipital
bone and the base of the skull
Depressed fracture of the zygomatic area may be clinically recognised by
1. Concavity of the overlying tissue in the zygomatic arch area
2. Interference with movements of the mandible
3. Subluxation of condyles
4. Both A and B
Oral Surgery
Answer: 4
Concavity of the overlying tissue in the zygomatic arch area: This indicates a loss of structural integrity due to the fracture.Interference with movements of the mandible: The zygomatic bone plays a role in the overall facial structure and function, and a fracture can affect jaw movement.Both of these signs are indicative of a depressed fracture in this region.
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.