Malocclusion Flashcards Preview

Ortho 1 > Malocclusion > Flashcards

Flashcards in Malocclusion Deck (30)
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1
Q

Disto-occlusion AKA?

A

Class II

2
Q

Class II division 1? (2)

A
  • proclined maxillary anterior teeth (diastemas)

- increased overjet

3
Q

Class II division 2? (2)

A
  • STRAIGHT/RETROCLINED maxillary anterior teeth
  • decreased overjet
  • increased/deep overbite
4
Q

Class II division 1 spee curve?

A

increased

5
Q

Class II division 1 upper arch?

A

compressed

6
Q

Class II division 1 upper arch shape?

A

V

7
Q

Class II division 1 lower incisors?

A

normal/retroclined

8
Q

Class II division 2 Central and lateral incisors?

A
  • central: retroclined

- lateral: PROCLINED

9
Q

Class II division 2 overjet?

A

decreased

10
Q

Class II division 2 overbite?

A

deep

11
Q

Class II division 2 upper arch shape?

A

U

12
Q

Class II division 2 lower arch? (2)

A

normal or retroclined loweer incisors

13
Q

Mesio-occlusion?

A

class III

14
Q

Disadvantages of angles classification? (3)

A
  • Just takes into account the position of the 1st permanent molar
  • Only sagittal plane
  • Doesn’t consider etiology
15
Q

Lischer: Arch malposition is associated with which reference plane?

A

Mid-saggital or anteroposterior

16
Q

Lischer: Skeletal (max/mand) malocclusion is associated with which reference plane?

A

occlusal/horizontal plane

17
Q

Lischer: Tooth malposition is associated with which reference plane?

A

arch shape

18
Q

Supraversion?

A

Overeruption past plane of occlusion

19
Q

Infraversion?

A

not erupted to occlusal plane

20
Q

Dewey’s class I type 1? (2)

A
  • crowded anterior upper teeth

- canines buccal or palatal

21
Q

Dewey’s class I type 2? (2)

A
  • protrusive max. incisors

- increased overjet

22
Q

Dewey’s class I type 3?

A

anterior cross bite

23
Q

Dewey’s class I type 4?

A

posterior cross bite

24
Q

Dewey’s class I type 5?

A

1st molars mesially drifted

etiology: early loss of primary teeth

25
Q

Dewey’s class III type 1?

A

edge to edge incisors

26
Q

Dewey’s class III type 2?

A

lower anterior teeth crowded OR linguoversioned

27
Q

Dewey’s class III type 3? (2)

A
  • Crowded upper teeth

- anterior cross bite

28
Q

Primary tissue involved in development of skeletal maloclusion?

A

Maxilla / Mandible

29
Q

Primary tissue involved in development of muscular malocclusion?

A

mucular origin

30
Q

Primary tissue involved in development of dental maloclusion?

A

dental origin