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Orthopedic > Ceph landmarks > Flashcards

Ceph landmarks Flashcards

1
Q

Tweed’s Triangle

A

FMPA
FMIA
IMPA

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2
Q

ANB LOWER than range

A

-1 below

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3
Q

ANB HIGHER than range

A

4/5 above

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4
Q

ANB normal range

A

0-5/0-4
Class I

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5
Q

ANB

A

A-Nasion-B

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6
Q

Flat Mandibular Plane Angle

A

Short vertical dimension
Deep bite
ClassIII

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7
Q

Steep Mandibular Plane Angle

A

Long vertical dimension- Long face syndrome

Anterior open bite: mouth breathing and tongue thrusting habit

Class II

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8
Q

Frankfurt Mandibular Plane Angle normal range

A

22.3-34.5°

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9
Q

Frankfurt Horizontal Plane + Mandibular Plane

A

Frankfurt Mandibular Plane Angle

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10
Q

Planes that represent the anterior cranial base

A

Frankfurt Horizontal Plane
Sella-Nasion Plane - more accurate

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11
Q

Sella to gnathion/pogonion

A

Y-axis plane

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12
Q

Menton to Gonion forms what plane

A

Mandibular plane

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13
Q

Nasion to pogonion forms what plane

A

Facial plane

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14
Q

Nasion to sella forms what plane

A

Sella-Nasion Plane

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15
Q

Porion to orbitale forms what plane

A

Frankfurt Horizontal Plane

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16
Q

Point between Pogonion and Menton

A

Gnathion

17
Q

Most stable landmark in cephalometric radiograph

A

Sella

18
Q

MOST INFERIOR PORTION of the orbit

A

Orbitale

19
Q

Innermost point on contour of premaxilla between incisor and ANS

A

Point A / subspinale

20
Q

Lowest most posterior point on the mandible with the teeth in occlusion

A

Gonion (Go)/ angle of the mandible

21
Q

Most inferior part of mandibular symphysis

A

Menton (Me)

22
Q

Most anterior point of the contour of the chin

A

Pogonion (Pog)

23
Q

Innermost point on contour of mandible between incisor and bony chin

A

Point B/ supramentale

24
Q

The midpoint of SELLA TURCICA (Pituitary gland)

A

Sella (S)

25
Q

Most superior margin of the external auditory canal

A

Porion (Po)

26
Q

Junction of frontal bone and nasal bone

A

Nasion

27
Q

The point of INTERSECTION of the contour of the posterior cranial base and the posterior contour of the condylar process

A

Articulare (Ar)

28
Q

Most forward and highest point of the ANTERIOR MARGIN OF FORAMEN MAGNUM

A

Basion (Ba)

29
Q

Highest point in the concavity behind the OCCIPITAL CONDYLE

A

Bolton (Bo)

Orthopedic (2 decks)

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