MDS PREP
The midpalatal suture is most likely to open at which following age of expansion?
1) 18 years old
2) 13 years old
3) 25 years old
4) 28 years old
Orthodontics
Answer: 2
Sequence of eruption of permanent maxillary teeth
1) 6-1-2-4-3-5-7
2) 6-1-2-4-5-3-7
3) 6-1-2-3-4-5-7
4) 1-2-3-4-5-6-7
Orthodontics
Answer: 1
Helix in a finger spring for mesial movement lies
1) Mesial to the long axis of the tooth
2) Distal to the long axis of the tooth
3) In line to the long axis of the tooth
4) Perpendicular to the long axis of the tooth
Orthodontics
Answer: 3
Reverse headgear (maxillary protraction headgear) is used mainly
1) To retract maxilla in maxillary skeletal protrusion
2) To induce the growth of maxilla in skeletal retrusion
3) To inhibit the growth of mandible in class III skeletal relation
4) To induce the growth of mandible in class III skeletal relation
Orthodontics
Answer: 2
Time taken for decidous dentition to reach occlusion after cutting into oral cavity
1. 2-12 months
2. 12-20 months
3. 20-30 months
4. Above 2 years
Orthodontics
Answer: 1
Perfect occlusion of the teeth is present naturally in
- less than five percent of the population.
- about 25 percent of the population.
- about 50 percent of the population.
- nearly 100 percent of the population.