MDS PREP
In whihc of the following conditions oral screen should not be used
1) Nail biting habit
2) Tongue thrusting
3) Acute infection of tonsils and adenoids
4) Thumb sucking
Orthodontics
Answer: 3
Which of the following is not true of lingual appliance
1) It is used in deep bite cases
2) Both the principles of straight wire and differential arch wire are used
3) Highly aesthetic
4) Bonding procedure is technique sensitive
Orthodontics
Answer: 1
Resorption of cementum as compared to bone when orthodontic forces applied
1) More intense
2) Less intense
3) Same intense
4) Variable
Orthodontics
Answer: 2
In lateral cephalometrics the distance at which film is placed from mid sagittal plane
1) 10 cm
2) 12 cm
3) 15 cm
4) 18 cm
Orthodontics
Answer: 4
The father of serial extraction philosophy in USA is
1) Kjellgren
2) Nancy
3) Dewel
4) Hotz
Orthodontics
Answer: 2
Progress of tooth movements after wearing an appliance may be described as
1) Rapid initially-delay-Slow finally
2) Slow initially-Delay-Rapid finally
3) Delay-Slow initially-Rapid finally
4) Delay-Rapid initially-Slow finally
Orthodontics
Answer: 2
Mesial step formation in deciduous dentition is indication of future
1) Class II malocclusion
2) Class III malocclusion
3) Anterior crowding
4) Anterior crosding
Orthodontics
Answer: 2
Malocclusion can be caused by both environmental and hereditary factors. Which of the following is environmental?
- crowding
- dental agenesis
- posterior crossbite
- thumb sucking