MCQ orthodontic Mey phoung7

The Norms of the Inter-incisal angle ( U1-L1) is ?
125 ± 1 degree
125 ± 2 degree
125 ± 3 degree
σ� 125 ± 4 degree
125 ± 5 degree
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
The Norms of the lower central incisor to APog line ( L1-APog ) ?
5 ± 5 mm
5 ± 4 mm
σ� 5 ± 3 mm
5 ± 2 mm
5 ± 1 mm
Which plane is paralleled to Horizontal plane ?
Maxillary plane
Mandibular plane
Functional plane
Frankfort plane
All unrelated
The Norms value of the Frankfort Mandibular plane angle (FMPA) ?
25 ± 2 degree
25 ± 3 degree
25 ± 4 degree
25 ± 5 degree
All unrelated
The Norms value of the Maxillary Mandibular plane angle (MMPA) ?
27 ± 3 degree
27 ± 2 degree
27 ± 1 degree
27 ± 0 degree
All unrelated
Which appliance was used as functional appliance with the skeletal class II discrepancy ?
Andresen
Herbst
Medium open activator
All are related
All unrelated
Which component that can help soft tissue balance between Lips/ cheeks and tongue is changed ?
Bite-planes
Shields
Working bite
σ� All are related
All unrelated
Which component that can allow differential eruption of teeth ?
Shields
Working bite
Bite-plane
All are related
All unrelated
Which component that can help the eruption of teeth ?
Bite block
Lower incisor capping
Posterior capping
All are related
All unrelated
Which component that can helps control eruption of anterior teeth ?
Clasp spring
Posterior capping
Shields
All are related
All unrelated
Which component should be used in deep bite cases in functional appliance ?
Posterior capping
Lower incisor capping
Lower inclined bite plane
All are related
σ� All unrelated
Which component should be used in reduced overbite cases in functional appliance ?
σ� Lower inclined bite plane
Lower incisor capping
Posterior capping
All are related
All unrelated
How many types of twin block for functional appliance?
One type
Two types
Three types
All are related
All unrelated
How many types of Frankel Functional Regulator?
One type
Two types
Three types
All are related
All unrelated
The removable appliance that allow eruption of lower posterior teeth ?
Working bite
Lower inclined bite plan
Upper inclined bite plane
All are related
All unrelated
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
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
σ� All unrelated
The dental effect were happened when functional appliance works ?
σ� Proclination of lower incisors
Distal eruption of upper molars
Mesial eruption of lower molars
All are related
All unrelated
Ow 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
Why do we select patient that concern with FMPA angle when indicate with functional appliance ?
Concern with vertical growth
Ncrease lower anterior face height
Concern with the overbite
All are related
All unrelated
The method to measure the arch we can divided it into ?
One segment
Two segments
Three segment
Four segments
Five segments
The space available can be measured in each segment by using ?
Gram gauge
Sharp divider
Meter
All unrelated
Approximate space requirement to flatten a curve of spee when the curve is 5 mm or more than the space requirement is?
1mm
σ� 2mm
3mm
4mm
All unrelated
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