Year4DD/Orthodontic I/Prof.Mey Phoung/
Orthodontic Knowledge Assessment
Test your knowledge on orthodontics with our engaging quiz designed for Year 4 dental students. This quiz covers various essential concepts, including norms, fun
- 300+ questions divided into multiple-choice format
- Focus on practical orthodontic topics
- Ideal for students and educators alike
301. The Norms of the upper permanent central incisor to Maxillary plane ?
112 ± 6 degree
112 ± 5 degree
112 ± 4 degree
112 ± 3 degree
All unrelated
302. The Norms of the Inter-incisal angle ( U1-L1) is ?
125 ± 1 degree
125 ± 2 degree
125 ± 3 degree
125 ± 4 degree
125 ± 5 degree
303. The Norms of the Lower central incisor to Mandibular plane (L1-MP ) ?
96 ± 5 degree
96 ± 4 degree
96 ± 3 degree
96 ± 2 degree
96 ± 1 degree
304. The Norms of the lower central incisor to APog line ( L1-APog ) ?
5 ± 5 mm
5 ± 4 mm
5 ± 3 mm
5 ± 2 mm
5 ± 1 mm
305. Which plane is paralleled to Horizontal plane ?
Maxillary plane
Mandibular plane
Functional plane
Frankfort plane
All unrelated
306. The Norms value of the Frankfort Mandibular plane angle (FMPA) ?
25 ± 2 degree
25 ± 3 degree
25 ± 4 degree
25 ± 5 degree
All unrelated
307. The Norms value of the Maxillary Mandibular plane angle (MMPA) ?
27 ± 3 degree
27 ± 2 degree
27 ± 1 degree
27 ± 0 degree
All unrelated
308. Which appliance was used as functional appliance with the skeletal class II discrepancy ?
Andresen
Herbst
Medium open activator
All are related
All unrelated
309. Which component that can help soft tissue balance between Lips/ cheeks and tongue is changed ?
Bite-planes
Shields
Working bite
All are related
All unrelated
310. Which component that can allow differential eruption of teeth ?
Shields
Working bite
Bite-plane
All are related
All unrelated
311. Which component that can help the eruption of teeth ?
Bite block
Lower incisor capping
Posterior capping
All are related
All unrelated
312. Which component that can helps control eruption of anterior teeth ?
Clasp spring
Posterior capping
Shields
All are related
All unrelated
313. Which component should be used in deep bite cases in functional appliance ?
Posterior capping
Lower incisor capping
Lower inclined bite plane
All are related
All unrelated
314. Which component should be used in reduced overbite cases in functional appliance ?
Lower inclined bite plane
Lower incisor capping
Posterior capping
All are related
All unrelated
315. How many types of twin block for functional appliance?
One type
Two types
Three types
All are related
All unrelated
316. How many types of Frankel Functional Regulator?
One type
Two types
Three types
All are related
All unrelated
317. The removable appliance that allow eruption of lower posterior teeth ?
Working bite
Lower inclined bite plane
Upper inclined bite plane
All are related
All unrelated
318. The Class II div 2 functional appliance, Z spring was used in order to ?
Up right upper incisors
Retrocline upper incisors
Procline upper incisors
Tip upper incisors
All unrelated
319. Functional appliance can help accelerate growth when ?
Growth has ceased
Growth in time of growth spurt
Growth of the Cranial Vault
Growth of the maxilla
All unrelated
320. The dental effect were happened when functional appliance works ?
Proclination of lower incisors
Distal eruption of upper molars
Mesial eruption of lower molars
All are related
All unrelated
321. How can you know the patient in growing or stop growing ?
Ask the patient or parents
Take height of patient
Shoes size of patient
All are related
All unrelated
322. Why do we select patient that concern with FMPA angle when indicate with functional appliance ?
Concern with vertical growth
Increase lower anterior face height
Concern with the overbite
All are related
All unrelated
323. The method to measure the arch we can divided it into ?
One segment
Two segments
Three segments
Four segments
Five segments
324. The space available can be measured in each segment by using ?
Gram gauge
Sharp divider
Meter
All unrelated
325. Approximate space requirement to flatten a curve of spee when the curve is 5 mm or more than the space requirement is?
1mm
2mm
3mm
4mm
All unrelated
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