Lab 3 Measurement Analysis: Down's Analysis & Steiner's Analysis Flashcards

1
Q

This is one of the most frequently used cephalometric analysis, consisting of 10 parameters (5 skeletal, 5 dental).

A

Down’s analysis

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2
Q

What are the 3 limitations of Down’s analysis?

A
  1. Too many landmarks
  2. Too many measurements
  3. Time consuming
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3
Q

What are the 5 skeletal parameters (Down’s)?

A
  1. Facial angle
  2. Angle of convexity
  3. A-B plane angle
  4. Mandibular plane angle
  5. Y-axis (growth axis)
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4
Q

What are the 5 dental parameters (Down’s)?

A
  1. Cant of occlusal plane
  2. Inter-incisal angle
  3. Incisor occlusal plane angle
  4. Incisor mandibular plane angle
  5. Upper incisor to A-pog line
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5
Q

This analysis is developed with an idea of providing maximal information with the least number of measurements.

A

Steiner’s analysis

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6
Q

Steiner’s analysis are divided into 3 parts, which are..?

A
  • Skeletal
  • Dental
  • Soft tissue
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7
Q

What are the 5 skeletal analysis (Steiner’s)?

A
  1. SNA Angle
  2. SNB Angle
  3. ANB Angle
  4. Mandibular plane angle
  5. Occlusal plane angle
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8
Q

What are the 5 dental analysis (Steiner’s)?

A
  1. Upper incisor to N-A (angle)
  2. Upper incisor to N-A (linear)
  3. Inter-incisal angle
  4. Lower incisor to N-B (angle)
  5. Lower incisor to N-B (linear)
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9
Q

The facial contour line on Steiner’s soft tissue analysis, formed by drawing a line on the soft tissue contour of the chin to the middle of the lower border of the nose, is called..?

A

S line

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