MDS PREP

When the twin block appliances are engaged in full closure the upper and lower bite blocks interlock
1) 45 degrees angle
2) 60 degrees angle
3) 70 degrees angle
4) 90 degrees angle

Orthodontics Answer: 1

As skeletal changes takes place, gonion moves
1. Downwards and forwards
2. Downwards and backwards
3. Upwards and forwards
4. Upwards and backwards

Orthodontics Answer: 2

The two major local causes of root resorption are

1) inflammation and excessive pressure

2) inflammation and cementoclast-activating factor

3) excessive pressure and increased pH of ground substance

4) cementoclast-activating factor and increased pH of ground substance

Orthodontics Answer: 1

Maxilla develops by
1) Endochondral bone formation
2) Intramembranous bone formation
3) Both of the above
4) None of the above

Orthodontics Answer: 2

You are examining a case with class III incisor relation. Which of the following contribute to poor prognosis
1) Reduced overbite
2) Crowding or lower arch
3) Deviated path of closure
4) Retroclined upper central incisors

Orthodontics Answer: 1

Anchorage is better provided by
1) Single rooted teeth
2) Multi rooted
3) Narrow rooted
4) Small rooted teeth

Orthodontics Answer: 2

At what age child is expected to have 12 primary teeth and 12 erupted permanent teeth
1) 4.5 years
2) 6.5 years
3) 8.5 years
4) 11.5 years

Orthodontics Answer: 3

Which of the following forces best accomplish orthodontic tooth movement?
1) Heavy and continuous
2) Heavy and intermittent
3) Light and continuous
4) Light and intermittent

Orthodontics Answer: 3

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MDS PREP

When the twin block appliances are engaged in full closure the upper and lower bite blocks interlock1) 45 degrees angle2) 60 degrees angle3) 70 degrees angle4) 90 degrees angle

As skeletal changes takes place, gonion moves 1. Downwards and forwards 2. Downwards and backwards 3. Upwards and forwards 4. Upwards and backwards

The two major local causes of root resorption are 1) inflammation and excessive pressure 2) inflammation and cementoclast-activating factor 3) excessive pressure and increased pH of ground substance 4) cementoclast-activating factor and increased pH of ground substance

Maxilla develops by1) Endochondral bone formation2) Intramembranous bone formation3) Both of the above4) None of the above

You are examining a case with class III incisor relation. Which of the following contribute to poor prognosis1) Reduced overbite2) Crowding or lower arch3) Deviated path of closure4) Retroclined upper central incisors

Anchorage is better provided by1) Single rooted teeth2) Multi rooted 3) Narrow rooted4) Small rooted teeth

At what age child is expected to have 12 primary teeth and 12 erupted permanent teeth1) 4.5 years2) 6.5 years3) 8.5 years4) 11.5 years

Which of the following forces best accomplish orthodontic tooth movement?1) Heavy and continuous2) Heavy and intermittent3) Light and continuous4) Light and intermittent

Explore by subjects

When the twin block appliances are engaged in full closure the upper and lower bite blocks interlock
1) 45 degrees angle
2) 60 degrees angle
3) 70 degrees angle
4) 90 degrees angle

As skeletal changes takes place, gonion moves
1. Downwards and forwards
2. Downwards and backwards
3. Upwards and forwards
4. Upwards and backwards

The two major local causes of root resorption are

1) inflammation and excessive pressure

2) inflammation and cementoclast-activating factor

3) excessive pressure and increased pH of ground substance

4) cementoclast-activating factor and increased pH of ground substance

Maxilla develops by
1) Endochondral bone formation
2) Intramembranous bone formation
3) Both of the above
4) None of the above

You are examining a case with class III incisor relation. Which of the following contribute to poor prognosis
1) Reduced overbite
2) Crowding or lower arch
3) Deviated path of closure
4) Retroclined upper central incisors

Anchorage is better provided by
1) Single rooted teeth
2) Multi rooted
3) Narrow rooted
4) Small rooted teeth

At what age child is expected to have 12 primary teeth and 12 erupted permanent teeth
1) 4.5 years
2) 6.5 years
3) 8.5 years
4) 11.5 years

Which of the following forces best accomplish orthodontic tooth movement?
1) Heavy and continuous
2) Heavy and intermittent
3) Light and continuous
4) Light and intermittent