MDS PREP
Subjective symptom of buccal nerve block is
1. Numbness and tingling sensation of the buccal mucosa
2. Numbness of the lingual mucosa near molars
3. No subjective symptoms
4. A & B
Oral Surgery
Answer: 3
While the buccal nerve block is used to anesthetize the buccal mucosa and buccal
gingival tissues of the maxillary molars, the actual technique does not
typically produce any specific subjective symptoms in the patient other than the
sensation of the needle. The patient may feel numbness if the anesthetic
solution is inadvertently placed in the oral mucosa or if the block is done
improperly.
Of the following which tooth is most difficult to anaesthetize by infiltration technique alone
1. Maxillary canine
2. Macillary central incisors
3. Maxillary first molar
4. Maxillary first premolar
Oral Surgery
Answer: 3
Of the following, the maxillary first molar is the most difficult to anaesthetize by infiltration technique alone.
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..
Each of the following statements about local is correct except
1. Lignocaine causes cardiac dysrhythmias
2. Prilocaine is more toxic than lignocaine
3. Bupivacaine is given for obstetrci epitural anaesthesia
4. Both A and B
Each of the following statements about local anaesthesia is correct except: Prilocaine is more toxic than lignocaine.
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.
In dislocation of the jaw, displacement of the articular disc beyond the TM joint results from spasm of excessive contraction of the following muscle
1. Buccinator
2. Lateral pterygoid
3. Masseter
4. Temporalis
Latreal Pterygoid is inserted on Mandible
Patients with end-stage renal disease are of increased risk when undergoing extraction of teeth because they
1. Have an increased tendency to bleed
2. Are susceptible to infections
3. Are often on steroid therapy
4. All of the above
Oral Surgery
Answer: 4
Patients with end-stage renal disease are at increased risk during tooth
extraction due to several factors. They often have an increased tendency to
bleed due to platelet dysfunction and are susceptible to infections due to
compromised immunity. Additionally, they are often on steroid therapy, which can
affect wound healing and increase the risk of infection.
Nerve membrane stabilization action of local anaesthetic agents is due to
1. Increasing conductance of potassium ions
2. Creating negative after potentials
3. Preventing conductance of Na ions from the exterior of the nerve to the intrior
4. None of the above
Oral Surgery
Answer: 3
Nerve membrane stabilization action of local anaesthetic agents is due to preventing conductance of Na ions from the exterior of the nerve to the interior.