Lec 3: Ackerman-Proffit System of Classification

Question 1

Group 1

Answer 1

Intra-arch Alignment Symmetry
Occlusal view

Question 2

Group 2

Answer 2

Profile

Question 3

Group 3

Answer 3

Transverse Deviation (Lateral)

Question 4

Group 4

Answer 4

Sagittal Deviation (Antero-posterior)

Question 5

Group 5

Answer 5

Vertical Deviation

Question 6

Group 6

Answer 6

Trans-sagittal

Question 7

Group 7

Answer 7

Sagitto-vertical

Question 8

Group 8

Answer 8

Vertico-transverse

Question 9

Group 9

Answer 9

Trans-sagitto-vertical

Question 10

Group 1 criteria

Answer 10

Ideal
Crowding
Spacing

Question 11

Group 2 criteria

Answer 11

• Straight / convex / concave
• Facial divergence: Anterior divergence / posterior divergence

Question 12

Group 3 criteria

Answer 12

Buccal / palatal crossbite
Unilateral / bilateral
Skeletal / dental

Question 13

Group 4 criteria

Answer 13

Class I / Class II / Class III
Skeletal / dental

Question 14

Group 5 criteria

Answer 14

Anterior open bite
Posterior open bite
Anterior deep bite
Posterior collapsed bite
Skeletal / dental

Question 15

Group 6 criteria

Answer 15

Alignment
Profile
Type
Class

Question 16

Group 7 criteria

Answer 16

Alignment
Profile
Class
Bite depth

Question 17

Group 8 criteria

Answer 17

Alignment
Profile
Bite depth
Type

Question 18

Group 9 criteria

Answer 18

Alignment
Profile
Type
Class
Bite depth