Ortho Exam 1 Flashcards Preview

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Flashcards in Ortho Exam 1 Deck (55)
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1
Q

Trace cephs are traced with what?

Not what?

A

Pencil

permanent marker

2
Q

2 geometric measurements used in cephalometrics

A

Linear

Angular

3
Q

Cephalometrics can be used in prosthetics

A

True

4
Q

How often do you need to do cephs to track growth?

A

every year

5
Q

To get a better tracing you need part of the soft tissue blocked out so you can see it better

A

True

6
Q

Digital films used in cephalometrics?

A

True

7
Q

Who first introduced cephalometric analysis that was useful in diagnosis and research in ortho?

What year?

A

Dr. Downs

1948

8
Q

Growth occurs in what 2 ways?

A

Sutural

Appositional

9
Q

The Steiner analysis is the best cephalometric analysis

A

False

*all pretty good

10
Q

What is the most effective way to determine factors of growth?

A

Serial cephalometric images layered

11
Q

What films are a good way to detect impacted teeth?

A

Lateral Head Films

12
Q

Headfilm tracings can be used by multiple operators

A

True

13
Q

Headfilms traced by different operators will be identical in angular and linear measurements

A

False

14
Q

What is needed to correctly trace head films?

A

Tooth template

15
Q

Cephalometric headfilms can be used in 3D

A

True

16
Q

How many colors are used when tracing images so you can track progress/movement in cephalometrics?

A

3

17
Q

You have to have the patient bite in _____ occlusion for _____ films

A

Centric

Head

18
Q

Lateral head films only measure what 2 things?

A

Horizontal

Vertical

19
Q

There is no use for taking frontal head films for cephalometric purposes

What is the standard of care?

A

True

CBCT/ICAD

20
Q

Don’t take what films for cephalometric purposes?

Instead use the standard of care…

A

Frontal head films

CBCT/ICAD

21
Q

Who first introduced cephalomentrics to orthodontics in 1915?

A

Loon

22
Q

The distance from X-ray film head and the film itself is a set distance

A

True

23
Q

The key ridge is over the

A

MB cusp of Mx 1M

24
Q

Greek root of cephalometrics

A

Skull

*to measure skull

25
Q

3D ICAD can measure the skull in 3D

A

True

26
Q

Qualitative measurements cannot be made in a lateral head film

Lateral head films good for what?

Lateral head films measure what?

A

True

Impacted teeth

Horizontal/Vertical only

27
Q

Growth can be predicted with one film

A

False

28
Q

The furthest away from a sensor is ___% magnification projected the biggest

A

9.7%

29
Q

The best way to determine vectors is ceph drawings 1 year apart

A

True

30
Q

Serially placing ceph drawings on each other is the best way to determine vectors of growth (1 year apart)

A

True

31
Q

Cephalometric head films can be digitized

A

True

32
Q

The info you get from the head film is good for a lot of people

A

True

33
Q

Digital head films can be sent electronically

A

True

34
Q

a year is a reasonable time between head films and growth patterns/good time to retake films

A

True

35
Q

3 drugs that trigger hyperplastic gingival response

A

Phenytoin

Ca channel blockers

Immunosuppressives

36
Q

2 drugs that inhibit orthodontic movement

A

Bisphosphonates

Prostaglandin-inhibitors

37
Q

2 allergies important in Ortho

A

Nickel

Latex

38
Q

Radoiograph including TMJ

Radiograph w/ skeletal/dental relationships

Radiography revealing asymmetries

A

Pano

Lateral cephalometric

Posterior cephalometric

39
Q

3 main planes of the 3D-3T diagnosis and treatment objectives worksheet

A

Transverse

Saggital

Vertical

40
Q

Teeth in centric relation and the lips relaxed

A

Natural head posture

patient exam

41
Q

3 categories for Orthodontic database

A

Extraoral

Intraoral

Skeletal

42
Q

4 aspects of Transverse soft tissue diagnosis:

A

Buccal corridors

Facial fifths

Facial type (dolicho, meso, brachy)

Midline symmetry

43
Q

7 aspects of the Saggital soft tissue Dx:

A

Profile (convex/straight/concave)

Nasolabial angle

Lips

Bimaxillary Protrusive profile (lip thickness)

Mentolabial angle

Maxilla

Mandible

44
Q

9 aspects of Vertical soft tissue Dx:

A

Lip competent/incompetent

Lip incompetence + Mentalis strain

Facial thirds

Lower face height (short/brachyfacial, normal/mesofacial, long/dolichofacial)

Smile arc

Upper incisor exposure

Length upper incisor crowns

Incisor display

Gingival display

45
Q

The mean value for upper incisor exposure in females:

in males:

A
  1. 7mm

3. 9mm

46
Q

5 Transverse aspects of Skeletal Dx:

A

Posterior Crossbite

PA ceph

Arches (constricted/wide)

Arch forms (ovoid/v/square)

3-3, 6-6 widths

47
Q

Saggital aspects of Skeletal Dx:

A

Cephalometrics

48
Q

Vertical aspects of Skeletal Dx:

A

Occlusal canting

Mandibular divergency

Face height

Vertical Maxilla

49
Q

Dental Dx, Transverse:

A

Functional shift

Lateral variations

Midlines

50
Q

Dental Dx, Saggital:

A

Class I

Class II, div1

Class II, div2

Labially positioned incisors, classII, div2

Class III

Overjet

Ant crossbite

51
Q

Dental Dx, Vertical:

A

Occlusal cant

Curve of Spee

Overbite

Lateral open bite

52
Q

ALD

A

Arch length discrepencay

crowding/spacing

53
Q

Arch length - Width of teeth =

A

(-) Crowding

(+) Spacing

54
Q

The Bolton discrepancy is a _____ ratio discrepancy

Not a _____ discrepancy

A

tooth size

arch length

55
Q

2 most common causes of Bolton Discrepancy

A

Peg laterals

Missing teeth

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