MDS PREP
The effect of local anaesthesia can be increased by the addition of
1. Adrenaline
2. Isoprenaline
3. Dopamine
4. Felypressin
Oral Surgery
Answer: 1
The effect of local anaesthesia can be increased by the addition of adrenaline.
Of the following which is most suitable anaesthesia for the extraction of a deciduous molar
1. Inferior alveolar nerve block
2. Surface anaesthesia
3. Local infiltration
4. None of the above
Oral Surgery
Answer: 1
The most suitable anaesthesia for the extraction of a deciduous molar is inferior alveolar nerve block.
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..
Which of the following procedures is best suited to correct bimaxillary protrusion
1. Extraction of four premolars and anterior alveolar segment repositioning
2. Mandibular body osteotomy and posterior maxillary osteotomy
3. Subcondylar osteotomy
4. None of the above
Oral Surgery
Answer: 1
The best procedure to correct bimaxillary protrusion is extraction of four premolars and anterior alveolar segment repositioning. Bimaxillary protrusion is a condition where both the upper and lower jaws are positioned too far forward. This can be corrected by extracting the four premolars (two from the upper and two from the lower jaw) to create space for the teeth to move backward and then repositioning the anterior alveolar segments (the bone and gum tissue holding the front teeth) to achieve a more favorable facial profile and occlusion. This approach addresses the protrusion of both jaws simultaneously and is more effective than the other options listed, which are more targeted at specific jaw issues (mandibular body osteotomy and subcondylar osteotomy) and not as comprehensive for bimaxillary protrusion cases.
In children jaw fractures are normally immobilized for
1. 3 months
2. 6-8 weeks
3. 3-4 weeks
4. 5-10 days
Oral Surgery
Answer: 3
In children, the healing process for fractures is faster due to the high vascularity and rapid bone turnover in growing tissues. Mandibular fractures in children are typically immobilized for a shorter duration compared to adults, as prolonged immobilization can interfere with the growth of the jaw. Immobilization for 3-4 weeks is generally sufficient to allow proper healing without compromising growth.