Ortho - Lecture 5: Diagnosis & Tx plan

Question 1

A comparison of the amount of space
available and the space required for proper alignment; analysis of space within arch

Answer 1

Space analysis

Question 2

Space analysis is preformed from where?

Answer 2

Mesial of 1st permanent molar to mesial of other 1st permanent molar

Question 3

Measure the arch from first molar to the other, over the contact points and incisal edge of the incisors

Answer 3

Space available

Question 4

Measure the mesial-distal width of each tooth, including the first molars; Add all of the widths together

Answer 4

Space required

Question 5

Mixed dentition analysis (2)

Answer 5

Tanaka-Johnson
Moyers

Question 6

Tooth size analysis

Answer 6

Bolton

Question 7

Uses sum of width of lower permanent incisors

Answer 7

Moyers

Question 8

Takes total to a prediction chart that will estimate space needed for unerupted or erupted premolars and canines per quadrant

Answer 8

Moyers

Question 9

Uses sum of width of lower incisors to predict width of unerupted canines and premolars; no X-Rays or predicition charts used

Answer 9

Tanaka-Johnson

Question 10

Take sum of width of lower incisors and divide by 2

Answer 10

Tanaka-Johnson

Question 11

How do you predict the width of canine and premolars per quadrant in the Tanaka-Johnson analysis?

Answer 11

Add 10.5mm for lower arch
Add 11.5mm for upper arch

Question 12

Determines arch compatibility; helps determine the size of a possible
prosthetic replacement if needed; ideal ratio is 91.3%

Answer 12

Bolton

Question 13

Analyzes asymmetries of a single arch, spacing, diastemas, crowding, and rotations

Answer 13

Cast analysis