242 Orthodontic- Prof. Mom Sovanrithy

242 Questions | Attempts: 226
Share
Quiz Flashcard
SettingsSettings
Please wait...
  • 1/242 Questions

    Lower incline bite plane we make incline in?

    • 30 degree
    • 15 degree
    • 60 degree
    • 45 degree
Please wait...
About This Quiz

.

Dentist Quizzes & Trivia

Quiz Preview

  • 2. 

    Which one is the auxiliaries’ component in fixed appliance?

    • Brackets

    • Wire

    • Molar bend

    • Power chain

    Correct Answer
    A. Power chain
  • 3. 

    What is the factor related to retention to be consider at the treatment planning stage?

    • Growth spurt

    • Extraction decision

    • Growth modification

    • Type of retention

    Correct Answer
    A. Type of retention
  • 4. 

    What is the ANB angle in Class III skeletal pattern?

    • 2-4 degree

    • 4-6 degree

    • 6-8 degree

    • 0-1 degree

    Correct Answer
    A. 0-1 degree
  • 5. 

    What is the most comment decision for making crown bridge?

    • Crowding

    • Rotation

    • Tooth impacted

    • Spacing

    Correct Answer
    A. Spacing
  • 6. 

    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?

    • Competent lips

    • Everted lips

    • Inverted lips

    • Incompetent lips

    Correct Answer
    A. Incompetent lips
  • 7. 

    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 extraction for this case?

    • 4 teeth of 2nd premolars

    • 4 teeth of 2nd molars

    • 4teeth of 1st molars

    • 4 teeth of 1st premolars

    Correct Answer
    A. 4 teeth of 1st premolars
  • 8. 

    Before orthodontic treatment, which one we should do?

    • Do as patients order.

    • Bad oral hygiene

    • Check with parents

    • Select only patient with good oral hygiene for orthodontic treatment.

    Correct Answer
    A. Select only patient with good oral hygiene for orthodontic treatment.
  • 9. 

    Canine Mesially inclined eruption which indication we should do extraction ?

    • 1st Molar

    • Lateral incisor

    • 2nd Molar

    • 1st Premolar

    Correct Answer
    A. 1st Premolar
  • 10. 

    Tooth pain when we move it because of ?

    • Enamel caries

    • Gingivitis

    • Light force

    • Too much forces

    Correct Answer
    A. Too much forces
  • 11. 

    Which one more likely skeletal pattern of ANB normal?

    • 1-3 degree

    • > 5degree

    • 2-4 degree

    Correct Answer
    A. 2-4 degree
  • 12. 

    Which one more likely of Class II division1 malocclusion?

    • Upper incisors are Retroclined

    • OJ < 2mm

    • Always deep bite

    • Upper incisors are Proclined

    Correct Answer
    A. Upper incisors are Proclined
  • 13. 

    If there is a lot of root resorption we should do as following?

    • Use heavy force to move the teeth

    • Periodontal disease

    • Filling caries.

    • Stop activating appliance for at least 6 to 8 weeks.

    Correct Answer
    A. Stop activating appliance for at least 6 to 8 weeks.
  • 14. 

    Which one is skeletal feature of Class III?

    • Maxillary protruded

    • Retrognatic position of mandible

    • Acute Gonial angle

    • Maxillary short/small related to mandible broad

    Correct Answer
    A. Maxillary short/small related to mandible broad
  • 15. 

    Which one is the wire for making Z-spring?

    • 0.7mm

    • 0.4mm

    • 0.6mm

    • 0.5mm

    Correct Answer
    A. 0.5mm
  • 16. 

    Which one is the cause of Anterior cross bite?

    • Retained lower deciduous incisors

    • Small lower arch and very broad Upper arch

    • Missing lower teeth

    • Premature contact/ pseudo class III

    Correct Answer
    A. Premature contact/ pseudo class III
  • 17. 

    Which is the more likely clinical feature of Class II division 2 malocclusion:?

    • Overjet reverse

    • Open bite

    • Procline upper incisors

    • Retroclined upper central Incisors with OJ reduced

    Correct Answer
    A. Retroclined upper central Incisors with OJ reduced
  • 18. 

    Which one is the Keys of angle’s classification are ?

    • Incisors relationship

    • Canine relationship

    • Premolar relationship

    • Molars relationship

    Correct Answer
    A. Molars relationship
  • 19. 

    Clinical features in case of class II division 1 malocclusion?

    • Overjet increased with retroclined

    • Overjet decrease but overbite reduced

    • Over bite & over jet decrease

    • Overjet increased, overbite incomplete, incompetent lips

    Correct Answer
    A. Overjet increased, overbite incomplete, incompetent lips
  • 20. 

    Malocclusion means ?

    • Normal alignment of teeth

    • Misaligned teeth with traumatic bite

    • Open bite

    • Irregularities of teeth

    Correct Answer
    A. Irregularities of teeth
  • 21. 

    In case of class II division 2 malocclusion closing space is ?

    • Easy

    • Medium

    • Quick

    • Difficult

    Correct Answer
    A. Difficult
  • 22. 

    Soft tissue profile of a class III patient is?

    • Convex

    • Point A is ahead

    • N Point is ahead

    • Concave

    Correct Answer
    A. Concave
  • 23. 

    Harmful effects of orthodontics tooth movement?

    • Caries

    • Spacing

    • Crowding

    • Root resorption

    Correct Answer
    A. Root resorption
  • 24. 

    The most comment reasons for relapse is?

    • Good digitation

    • Full unit class I,II,III

    • Enough OB

    • Rotation and spacing

    Correct Answer
    A. Rotation and spacing
  • 25. 

    The most comment risks of orthodontics tooth movement?

    • Caries

    • Gingivitis

    • Good digitation

    • Root resorption

    Correct Answer
    A. Root resorption
  • 26. 

    If there is a lot of root resorption we should do?

    • Use more forcr to move teeth.

    • Continue to apply heavy force

    • Give some medicine

    • Stop activating appliance for at least 6 to 8 weeks and use a lighter force to move the teeth

    Correct Answer
    A. Stop activating appliance for at least 6 to 8 weeks and use a lighter force to move the teeth
  • 27. 

    Adam Clasps ភាគច្រើនគេដាក់នៅលើធ្មេញណាមួយ?

    • Big and painful teeth

    • Deep caries teeth

    • Periodontitis teeth

    • Strong and healthy teeth

    Correct Answer
    A. Strong and healthy teeth
  • 28. 

    Which size of the wireusing to make Adam clasp?

    • 0.5mm

    • 0.9 mm

    • 0.12mm

    • 0.7 mm

    Correct Answer
    A. 0.7 mm
  • 29. 

    តើចំលើយមួយណាសំរាបើ Expansion arch?

    • Robert retractor

    • Labial bow

    • Adam clasp

    • Screw expansion

    Correct Answer
    A. Screw expansion
  • 30. 

    តើលួសសំរាប់ធ្វើ Z-spring មានទំហ៊ំប៉ុន្មាន?

    • 0.7mm

    • 0.4mm

    • 0.6mm

    • 0.5mm

    Correct Answer
    A. 0.5mm
  • 31. 

    What is the Keys of angle’s classification?

    • Incisors relationship

    • Canine relation ship

    • Class I canine relationship

    • 1st permanent molar (Molars relationship)

    Correct Answer
    A. 1st permanent molar (Molars relationship)
  • 32. 

    In case of class II division 1 malocclusion lips are?

    • Competent

    • Potentially competent

    • Everted lips

    • Incompetent lips

    Correct Answer
    A. Incompetent lips
  • 33. 

    When the midline of upper and lower not in a line was call ?

    • Displacement

    • Crowding

    • Spacing

    • Central Line Shifting

    Correct Answer
    A. Central Line Shifting
  • 34. 

    Regarding of tissue change in mild force?

    • Force is 25-30 gm

    • Low degree of herperaemia seen

    • Decrease cellular activity

    • Increase production of osteoclast

    Correct Answer
    A. Increase production of osteoclast
  • 35. 

    Soft tissue profile of a severe skeletal III patient is?

    • Convex

    • Point A is ahead

    • Point B is ahead

    • Concave

    Correct Answer
    A. Concave
  • 36. 

    The most comment used of wire in fixed appliance is?

    • Round and triangle

    • Rectangular and triangle

    • Bending wires

    • Rectangular and round

    Correct Answer
    A. Rectangular and round
  • 37. 

    How many direction do fixed appliance can do?

    • 4

    • 5

    • 3

    • 6

    Correct Answer
    A. 6
  • 38. 

    What is the clinical feature of fixed appliance?

    • Fixed brackets to removable appliance

    • Bonded bracket to an appliance

    • The appliance that can be remove

    • Bonded bracket to the teeth

    Correct Answer
    A. Bonded bracket to the teeth
  • 39. 

    What is the risk of orthodontic treatment?

    • Carries

    • Periodontal disease

    • Bone fracture

    • Root resorption

    Correct Answer
    A. Root resorption
  • 40. 

    Which classification of malocclusion, Over jet is increased?

    • Class III malocclusion

    • Class II division 2 malocclusion

    • Class I malocclusion

    • Class II division 1 malocclusion

    Correct Answer
    A. Class II division 1 malocclusion
  • 41. 

    Which one is the Over jet of Class I malocclusion?

    • Upper incisors are Proclined and OJ < 2mm

    • Upper incisors are Retroclined OJ = 1mm

    • Upper incisors are Proclined and OJ>4mm

    • Upper incisors are Proclined and OJ =3mm

    Correct Answer
    A. Upper incisors are Proclined and OJ =3mm
  • 42. 

    Which one is the most likely OJ for Class II div 1 malocclusion?

    • Decrease

    • Average

    • Severe

    • Increase

    Correct Answer
    A. Increase
  • 43. 

    Which one is Overbite in Class III malocclusion?

    • 40-60%

    • 20-30%

    • 50-80%

    • 0-10%

    Correct Answer
    A. 0-10%
  • 44. 

    Which one is the best treatment for crowding?

    • Closing space

    • Derotation

    • Proclined upper incisors

    • Extraction

    Correct Answer
    A. Extraction
  • 45. 

    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?

    • Lips trap

    • Moth breaching

    • Thumb sucking

    • Tongue trust

    Correct Answer
    A. Tongue trust
  • 46. 

    Which one more likely of Class II division2 malocclusion?

    • Upper incisors are proclined

    • OJ < 2mm

    • Openbite

    • Upper incisors are Retroclined

    Correct Answer
    A. Upper incisors are Retroclined
  • 47. 

    Which Classification of Malocclusion when the OJ is increase?

    • Class I

    • Class II div 2

    • Class III

    • Class II div1

    Correct Answer
    A. Class II div1
  • 48. 

    Which Classification of Malocclusion when the OJ Normal?

    • Class II div1

    • Class II div 2

    • Class III

    • Class I

    Correct Answer
    A. Class I
  • 49. 

    Which appliance can correct anterior cross bite?

    • Orthognatic surgery

    • Retainer

    • Class II twinblock

    • Removable appliance within Z spring or T spring and posterior bite plane

    Correct Answer
    A. Removable appliance within Z spring or T spring and posterior bite plane

Quiz Review Timeline (Updated): Mar 21, 2022 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 21, 2022
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 06, 2020
    Quiz Created by
    Vuth
Back to Top Back to top
Advertisement
×

Wait!
Here's an interesting quiz for you.

We have other quizzes matching your interest.