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Ortho 1 Lab > Lab 2 > Flashcards

Lab 2 Flashcards

1
Q

_______ is the study of head-films, called cephalogram.

A

Cephalometric

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2
Q

A ______ is a two-dimensional projection of the skull.

A

cephalogram

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3
Q

These films are taken in a ________:

•Which is an x-ray apparatus with a standard 5-foot source-object distance.

A

cephalostat.

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4
Q

The image receptor is positioned parallel to the patient’s _______

A

midsagittal plane.

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5
Q

The patient is placed with the ____ side toward the image receptor.

A

left

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6
Q

What are the 5 functional components of the face?

A 
Cranium/ cranial base
Maxilla and nasomaxillary complex
Max teeth and alv process
Mandibular teeth teeth and alv process
Manbile
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7
Q

What is red dot?

A

Sella -S

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8
Q

•Midpoint of sella turcica or
hypophyseal fossa or
pituitary fossa.

A

Sella - S

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9
Q

•Point at the center of the
anterior border of the
foramen magnum at the
base of the occipital bone.

A

Basion - Ba

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10
Q

What’s the red dot?

A

Basion -Ba

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11
Q

•The most anterior point

of the frontal bone.

A

Glabella (Gl)

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12
Q

What’s the yellow arrow?

A

Glabella (Gl)

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13
Q

•The most Anterior point of
the Frontonasal suture in
the mid-saggital plane.

A

Nasion (N)

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14
Q

Whats the red dot?

A

Nasion (N)

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15
Q

•Lowest point in the inferior
margin of the orbit.
•midpoint between right and left
image.

A

Orbitale (Or)

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16
Q

Whats the red dot?

A

Orbitale (Or)

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17
Q

•Bilateral tear-drop shaped area,
the anterior shadow of which
represents the posterior surface of
the tuberosity of the maxilla.

A

Pterygomaxillary Fissure (PTM)

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18
Q 
•The most superiorly positioned 
point of the external auditory 
meatus 
•Sometimes located by using 
the ear-rods of the cephalostat
A

Porion (Po)

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19
Q

What’s the red dot?

A

Pterygomaxillary fissure (PTM)

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20
Q

What’s the red dot?

A

Porion (Po)

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21
Q 
•The most anterior point on the 
maxilla at the level of the palate.
•The anterior tip of the sharp 
bony process of the maxilla at 
the lower margin of the anterior 
nasal opening.
A

Anterior nasal spine (ANS)

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22
Q

What’s the red dot?

A

Anterior Nasal Spine

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23
Q 
•Deepest point on the curved 
bony outline between the 
ANS and Prosthion (Pr).
•Deepest point on the curve 
of the bone between the ANS 
and dental alveolus.
A 
A point 
(Sub-spinale)
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24
Q

What’s the red dot?

A

A point

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25
Q 
•Lower most anterior point of 
alveolar process of pre-maxilla 
in the midline between two 
maxillary central incisors.
•The most anterior inferior 
point on the maxillary alveolar 
process usually found near the 
CEJ of the maxillary central 
incisor.
A

Prosthion (Pr)

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26
Q

What’s the red dot?

A

Prothsion (Pr)

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27
Q

The most labial point on
the crown of the
maxillary central incisor.

A

Max Central Incisor (U1)

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28
Q

What’s the red dot?

A

Max central incisor (U1)

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29
Q

•The incisal tip of the most
anterior maxillary central
incisor.

A

Incision Superius Incisalis (Isi)

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30
Q

What’s the red dot?

A

Incision Superius Incisalis (Isi)

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31
Q

The upper incisor apex is
the root apex of the most
prominent upper incisor.

A

Incision Superius Apicalis (Isa) UIA

32
Q

What’s the red dot?

A

Incision Superius Apicalis (Isa) UIA

33
Q

•Midpoint of the base of
the palatine bone at the
posterior margin of the
hard palate.

A

Posterior Nasal Spine (PNS)

34
Q

What’s the red dot?

A

Posterior nasal spine (PNS)

35
Q

• Incisal edge of the most prominent/

labial mandibular central incisor.

A

Incision inferius Incisalis (Iii)

36
Q

What’s the red dot?

A

Incision inferius Incisalis (Iii)

37
Q

• The root apex of the most anterior

mandibular central incisor.

A

Insision inferius Apicalis (Iia)

38
Q

What’s the red dot?

A

Insision inferius Apicalis (Iia)

39
Q

The tip of the mesiobuccal cusp of the

maxillary first permanent molar.

A

Maxillary 1st Molar (U6)

40
Q

What’s the red dot?

A

Maxillary 1st Molar (U6)

41
Q

The tip of the mesiobuccal cusp of the

mandibular first permanent molar.

A

Mand first molar (L6)

42
Q

What’s the red dot?

A

Mand first molar (L6)

43
Q

•The most posterior point of the
bony curvature of the mandible
below infra-dentale and above
Pogonion.

A

Point B

Supra-mental

44
Q

What’s the red dot?

A

Point BSupra-mental

45
Q

•The most anterior point on

the bony chin.

A

Pogonion (Pog)

46
Q

What’s this red dot?

A

Pogonion (Pog)

47
Q 
•The most anterior inferior 
point in the lateral shadow of 
the chin. 
•Ganthion usually is best 
determined by selecting the 
midpoint between pogonion 
and menton on the contour of 
the chin.
A

Gnathion (Gn)

48
Q

What’s the red dot?

A

Gnathion (Gn)

49
Q

•The lowest point on the
symphyseal shadow of the
mandible.

A

Menton (Me)

50
Q

What’s the red dot?

A

Menton (Me)

51
Q 
•A point on the curvature 
of the angle of the 
mandible located by 
bisecting the angle 
formed by lines tangent 
to the posterior ramus 
and the inferior border of 
the mandible.
A

Gonion (Go)

52
Q

What’s the red dot?

A

Gonion (Go)

53
Q 
•A point at the junction 
of the posterior border 
of the ramus and the 
inferior border of the 
posterior cranial base 
(occipital bone).
A

Articulare (Ar)

54
Q

What’s the red dot?

A

Articulare (Ar)

55
Q

The most superior point
on the mandibular
condylar head.

A

Condylion (Cd)

56
Q

What’s the red dot?

A

Condylion (Cd)

57
Q

Most anterior point in the midsagittal
plane of the forehead at the level of
the superior orbital ridges.

A

Soft Tissue Glabella(G)

58
Q

What’s the yellow dot?

A

Soft Tissue Glabella(G)

59
Q

Most retruded point in the tissue
overlying the area of the frontonasal
suture.

A

Soft tissue Nasion (n)

60
Q

What’s the yellow dot?

A

Soft tissue Nasion (n)

61
Q

The most prominent or anterior

point of the nose.

A

Pronasale (Pn)

62
Q

What’s the yellow dot?

A

Pronasale (Pn)

63
Q

The point at which the nasal septum
merges with the upper lip in the
midsagittal plane.

A

Sub-nasale (Sn)

64
Q

What’s the yellow dot?

A

Sub-nasale (Sn)

65
Q

Most anterior point on the upper margin of the upper

membrane lip.

A

Labrale Superius (Ls)

66
Q

What’s the yellow dot?

A

Labrale Superius (Ls)

67
Q

Median point of the oral embrasure when the lips

are closed.

A

Stomion (Sto)

68
Q

What’s the yellow dot?

A

Stomion (Sto)

69
Q

Most anterior point on the lower margin of the

lower membrane lip.

A

Labrale Inferius (Li)

70
Q

What’s the yellow dot?

A

Labrale Inferius (Li)

71
Q

Point of greatest concavity in the midline of the lip

between labrale inferius and soft tissue pogonion.

A

Soft tissue Sub-mentale (Soft tissue B point)

72
Q

What’s the yellow dot?

A

Soft tissue Sub-mentale (Soft tissue B point)

73
Q

Most prominent or anterior point on the soft tissue

chin in the midsagittal plane.

A

Soft tissue Pogonion (Pog)

74
Q

What’s the yellow dot?

A

Soft tissue Pogonion (Pog)

75
Q

Midpoint between the most anterior and inferior points

of the soft tissue chin in the midsagittal plane.

A

Soft tissue Gnathion (Gns)

76
Q

What’s the yellow dot?

A

Soft tissue Gnathion (Gns)

Ortho 1 Lab (4 decks)

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