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NEETMDS- Orthodontics mcq
MDS PREP
Inclined plane is constructed
1) 90 degrees to occlusal plane
2) 45 degrees to occlusal plane
3) 30 degrees to occlusal plane
4) 70 degrees to occlusal plane
Orthodontics Answer: 2

The effect of enlarged adenoids on the maxillary growth is by (or) Mouth breathing habit usually causes
1) Narrowing of maxilla
2) Widening of maxilla
3) Palatal plane tipped upwards at PNS
4) Palate descends down
Orthodontics Answer: 1

Gennifer at 4 years got her lower 2nd molar extracted due to caries, the possible line of treatment is
1) Distal shoe space maintainer
2) Band and loop between primary 1st molar and permanent 1st molar
3) Removable partial denture
4) No active treatment is necessary
Orthodontics Answer: 1

Which is a new slow type palatal expander
1) NiTi expander
2) Hyrax expander
3) Quad helix
4) Molar rotator
Orthodontics Answer: 1

Dental arch form is finally determined by
1) Facial type
2) Growth pattern
3) Angle"s classification
4) Balance between intraoral and extraoral muscle forces
Orthodontics Answer: 4

Cleft lip occurs due to non-union of
1) Maxillary process and frontonasal process
2) Maxillary process and mandibular process
3) Maxillary process and palatine process
4) Frontonasal and palatine process
Orthodontics Answer: 2

Which of the following landmarks are not located in mandible
1) Pogonion
2) Gnathion
3) Menton
4) Porion
Orthodontics Answer: 4

Relapse after orthodontic tooth movement is due to
1) Superacrestal gingival fibers
2) Abnormal pressure habits
3) Improper angulation of the teeth
4) All of the above
Orthodontics Answer: 4

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