MDS PREP
A light bluish dome-shaped lesion on the inside of a lip of 2 year-old-child is
1) Mucocele
2) Haematoma
3) Melanoma
4) Haemangioma
Pedodontics
Answer: 1
A mucocele is a common, benign lesion that occurs due to the blockage or rupture of a salivary gland duct, leading to the accumulation of mucous. In children, they often appear as dome-shaped, soft, bluish swellings on the lips or oral mucosa. Other options such as hematoma, melanoma, and hemangioma typically present differently and are less likely to occur in this specific context.
Standard force for evaluating periodontal pockets that have been found to be well tolerated is
1. 0.65 N
2. 0.75 N
3. 0.85 N
4. 0.95 N
Pedodontics
Answer: 2
The standard force for evaluating periodontal pockets that have been found to be well tolerated is 0.75 N.
The best way to detect bony defects is
1. Radiograph at different angulations
2. Careful probing
3. Surgical exposure
4. Measurement of pocket depth
Pedodontics
Answer: 3
The best way to detect bony defects is surgical exposure.
How many osseous walls are present in one-walled vertical defects?
1. One wall present
2. Two walls present
3. Three walls present
4. Four walls present
Pedodontics
Answer: 1
In one-walled vertical defects, one wall is present.
The existence of a 2 mm diastema between the fully erupted maxillary permanent central incisors of a 7 year old
child may be attributed to
1. a prominent anterior nasal spine
2 a broad nasal septum
3 failure of fusion of the premaxillae
4. the normal eruption pattern of these teeth
Pedodontics
Answer: 4
A diastema, or space between teeth, can be a normal finding in children, especially during the mixed dentition phase. The presence of a 2 mm diastema between the maxillary central incisors in a 7-year-old is often due to the normal eruption pattern of these teeth, as they may not yet be fully aligned or spaced appropriately.
Undermining resorption occuring from within marrow spaces towards PD ligament is found
1. Bone covering unerupted tooth
2. Bone due to hormonal changes
3. Due to necrosis of bone on compression side as a result of occlusal trauma
4. All of the above
Pedodontics
Answer: 3
Undermining resorption occurs due to necrosis of bone on the compression side as a result of occlusal trauma.
The average leeway space in the maxilla (both right and left sides) is
1. 1.8 mm
2. 2.7 mm
3. 3.6 mm
4. 0.9mm
Pedodontics
Answer: 1
The average leeway space in the maxilla (both right and left sides) is 1.8
mm.
Leeway space is the amount of space available for the movement of teeth in the
maxilla and mandible during orthodontic treatment. It is calculated by
subtracting the combined mesiodistal width of the mandibular incisors from that
of the maxillary incisors. This space is crucial in determining the potential
for tooth movement, particularly in cases where there is crowding. The answer of
1.8 mm is a commonly accepted average value in the field of orthodontics.
Electro-surgery or surgical diathermy uses controlled high frequency electrical current in the range of
1. 1.5-7.5 million cycles/second
2. 7.5-10.0 million cycles/second
3. 15-20 million cycles/second
4. 25-30 million cycles/second
Pedodontics
Answer: 1
Electrosurgery uses controlled high-frequency electrical current in the range of 1.5-7.5 million cycles/second.