Orthodontic 1
1. Lower incline bite plane use for correcting?
σ� Simple anterior cross bite
σ� Posterior cross bite
σ� Unilateral cross bite
σ� Bilateral cross bite
2. What is the lower incline bite plane?
σ� An appliance for correct simple cross bite
σ� Fixed appliance
σ� Removable appliance
σ� Functional appliance
3. Lower incline bite plane cover the teeth of ?
σ� Lower buccal segment
σ� Lower labial segment
σ� Upper labial segment
σ� Upper buccal segment
7. The most comment used of wire in fixed appliance is?
σ� Round and triangle
σ� Rectangular and triangle
σ� Bending wires
σ� Rectangular and round
9. Which one is the auxiliaries’ component in fixed appliance?
σ� Power chain
σ� Brackets
σ� Wire
σ� Molar bend
10. What is the clinical feature of fixed appliance?
σ� Fixed brackets to removable appliance
σ� Bonded bracket to the teeth
σ� Bonded bracket to an appliance
σ� The appliance that can be remove
11. What is the most common appliances to avoid for adult orthodontic?
σ� Head Gear and Face Mask
σ� Removable appliance
σ� Fixed appliance
σ� Lingual brace
12. What is the problem can increased risk of root resorption:?
σ� Long roots.
σ� Previously caries
σ� No vital or root treated
σ� Light forces
13. What is the risk of orthodontic treatment?
σ� Root resorption
σ� Carries
σ� Periodontal disease
σ� Bone fracture
14. What is the most comment risk in orthodontic treatment?
σ� relapse
σ� retention
σ� over correction
σ� good digitation
15. What is the meaning of balancing extraction?
σ� Extraction upper and lower tooth in both side
σ� Extraction upper and lower tooth in one side
σ� Extraction Both side in one arch
σ� Both side in two arches
16. What is the meaning of compensating extraction?
σ� Upper and lower teeth in both arches
σ� Upper and lower tooth in one side
σ� Both side in one arch
σ� Both side in two arches
17. Why we use retainer after finishing orthodontic treatment?
σ� Preventing teeth relapse
σ� Allow teeth eruption
σ� Allow growth change
σ� Prevent 3rd molars eruption
18. What is the factor related to retention to be consider at the treatment planning stage?
σ� Type of retention
σ� Growth spurt
σ� Extraction decision
σ� Growth modification
19. Which one the factor may modify retention protocol?
σ� Lower incisors alignment
σ� Crowding
σ� Missing teeth
σ� Dental caries
20. What is the condition that requires short term retention?
σ� Deep bite
σ� Expanded arches
σ� Serial extraction procedures
σ� Midline shift
21. Which condition that require long term retention?
σ� Severe rotation
σ� High place canines in class one extraction cases
σ� Posterior cross bite in patients having step cusp
σ� Extraction cases
22. Which condition that does not require retention?
σ� Anterior cross bite
σ� Sever rotation
σ� Median diastema
σ� Deep bite
23. Which classification of malocclusion, Over jet is increased?
σ� Class III malocclusion
σ� Class II division 2 malocclusion
σ� Class II division 1 malocclusion
σ� Class I malocclusion
24. Which one is the Over jet of Class I malocclusion?
σ� Upper incisors are Proclined and OJ < 2mm
σ� Upper incisors are Retroclined OJ = 1mm
σ� Upper incisors are Proclined and OJ>4mm
σ� Upper incisors are Proclined and OJ =3mm
25. Which one the most likely the Over jet of Class II division1 malocclusion?
σ� Upper incisors are Proclined, OJ < 2mm
σ� Upper incisors are Retroclined , OJ = 1mm
σ� Upper incisors are Proclined, OJ>4mm
σ� Upper incisors are Proclined, OJ =3mm
26. Which is the Over jet of Class II division 2 malocclusion?
σ� Upper incisors are retroclined, OJ <2mm
σ� Upper incisors are retroclined ,OJ = 1 mm
σ� Upper incisors are Proclined, OJ>4mm
σ� Upper incisors are proclined , OJ =3mm
27. Which one the most likely the Over jet of Class III malocclusion?
σ� Upper incisors are Proclined, OJ > 3mm
σ� Upper incisors are Proclined OJ <1mm
σ� Upper incisors are Proclined and OJ>7mm
σ� Upper incisors are Proclined and OJ =3mm
28. When the lower incisor edges lie posterior to the cingulum plateau of the upper incisor and Upper incisors are Proclined?
σ� Class I
σ� Class II div 1
σ� Class II DIV 2
σ� Class III
29. When the lower incisor edges lie posterior to the cingulum plateau of the upper incisor with retrocline?
σ� Class I malocclusion
σ� Class II div 1
σ� Class II DIV 2
σ� Class III
30. When the lower incisor edges occlude into cingulum plateau of the upper is?
σ� Class I
σ� Class II div 1
σ� Class II DIV 2
σ� Class III
31. When the lower incisor edges lie Anterior to the cingulum plateau of the upper?
σ� Class I
σ� Class II div 1
σ� Class II DIV 2
σ� Class III
33. Which one is the most likely OJ for Class II div 1 malocclusion?
σ� Increase
σ� Decrease
σ� Average
σ� Severe
36. Which plane we use to find Overbite?
σ� Transversal
σ� Horizontal
σ� Posterior-anterior
σ� Vertical
39. Which one is the most likely ANB angle in Class II skeletal pattern?
σ� 1-2 degree
σ� 2-4 degree
σ� 3-4 degree
σ� 6-8 degree
40. What is the ANB angle in Class III skeletal pattern?
σ� 0-1 degree
σ� 2-4 degree
σ� 4-6 degree
σ� 6-8 degree
41. Which one is the best treatment for crowding?
σ� Closing space
σ� Extraction
σ� Derotation
σ� Proclined upper incisors
42. For spacing which one is the best treatment?
σ� Closing space
σ� Extraction
σ� Derotation
σ� Proclined upper incisors
43. Which is the common treatment for tooth rotation?
σ� Closing space
σ� Extraction
σ� Derotation
σ� Proclined upper incisors
44. Which one is the best treatment for anterior cross bite?
σ� Closing space
σ� Extraction
σ� Derotation
σ� Proclined upper incisors
45. Which one is orthodontic treatment for spacing teeth?
σ� Crown bridge
σ� Space closure
σ� Implant
σ� Space closures
46. What is the most comment decision for making crown bridge?
σ� Crowding
σ� Spacing
σ� Rotation
σ� Tooth impacted
47. Which one is the most comment decision for extraction teeth?
σ� Crowding
σ� Spacing
σ� Rotation
σ� Tooth impacted
48. A 12 years old girl come to orthodontics department at the UHS to check her teeth she complain of her front teeth are sticky out both arches with incompetent lips and her facial profile is more convexity . Which one is the most likely clinical feature of this sign?
σ� Crowding
σ� Bimaxillary protrusion
σ� Spacing
σ� Rotation
49. A 12 years old girl come to orthodontics department at the UHS to check her teeth she complain of her front teeth are sticky out both arches with tongue trust and her facial profile is more convexity . Which one is the most likely clinical feature of lips?
σ� Competent lips
σ� Incompetent lips
σ� Everted lips
σ� Inverted lips
50. A 12 years old girl come to orthodontics department at the UHS to check her teeth she complain of her front teeth are sticky out both arches with incompetent lips and her facial profile is more convexity . Which one is the most likely cause by?
σ� Lips trap
σ� Tongue trust
σ� Moth breaching
σ� Thumb sucking
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