MDS PREP

Which of the following is not true of a fixed appliance
1) Economical
2) Rotation and extrusion movements are possible
3) Patient cooperation is not required
4) Tipping and bodily movement are possible

Orthodontics Answer: 1

A coil spring used over an arch wire segment for space regaining should deliver a force of
1) 15-30 g
2) 50-100 g
3) 90-120 g
4) 120-150 g

Orthodontics Answer: 3

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

Direction of grwoth of basal cranium
1) Upwards and backwards
2) Upwards and forwards
3) Downwards and forwards
4) Downwards and backwards

Orthodontics Answer: 2

Frankel appliance confined to mixed dentition period is
1) Frankel I
2) Frankel II
3) Frankel III
4) Frankel IV

Orthodontics Answer: 4

In an individual whose mandible is growing less forward than expected, the lower incisors will probably be inclined
1. Backward
2. Forward
3. Vertically over basal bone
4. No relation at all

Orthodontics Answer: 2

Reciprocal anchorage is offered by
1) Activator
2) Intermaxillary elastics
3) Maxillary expansion appliance
4) Catalan"s appliance

Orthodontics Answer: 3

The six keys to normal occlusion were introduced by
1) Dewey
2) Andrews
3) Tweed
4) None of the above

Orthodontics Answer: 2

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MDS PREP

Which of the following is not true of a fixed appliance1) Economical2) Rotation and extrusion movements are possible3) Patient cooperation is not required4) Tipping and bodily movement are possible

A coil spring used over an arch wire segment for space regaining should deliver a force of1) 15-30 g2) 50-100 g3) 90-120 g4) 120-150 g

The midpalatal suture is most likely to open at which following age of expansion?1) 18 years old2) 13 years old3) 25 years old4) 28 years old

Direction of grwoth of basal cranium1) Upwards and backwards2) Upwards and forwards3) Downwards and forwards4) Downwards and backwards

Frankel appliance confined to mixed dentition period is1) Frankel I2) Frankel II3) Frankel III4) Frankel IV

In an individual whose mandible is growing less forward than expected, the lower incisors will probably be inclined 1. Backward 2. Forward 3. Vertically over basal bone 4. No relation at all

Reciprocal anchorage is offered by1) Activator2) Intermaxillary elastics3) Maxillary expansion appliance4) Catalan"s appliance

The six keys to normal occlusion were introduced by1) Dewey2) Andrews3) Tweed4) None of the above

Explore by subjects

Which of the following is not true of a fixed appliance
1) Economical
2) Rotation and extrusion movements are possible
3) Patient cooperation is not required
4) Tipping and bodily movement are possible

A coil spring used over an arch wire segment for space regaining should deliver a force of
1) 15-30 g
2) 50-100 g
3) 90-120 g
4) 120-150 g

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

Direction of grwoth of basal cranium
1) Upwards and backwards
2) Upwards and forwards
3) Downwards and forwards
4) Downwards and backwards

Frankel appliance confined to mixed dentition period is
1) Frankel I
2) Frankel II
3) Frankel III
4) Frankel IV

In an individual whose mandible is growing less forward than expected, the lower incisors will probably be inclined
1. Backward
2. Forward
3. Vertically over basal bone
4. No relation at all

Reciprocal anchorage is offered by
1) Activator
2) Intermaxillary elastics
3) Maxillary expansion appliance
4) Catalan"s appliance

The six keys to normal occlusion were introduced by
1) Dewey
2) Andrews
3) Tweed
4) None of the above