Area of Study

Measurement

(A1)

(A2)

(B)

Difference
(A1-B)

Maxilla to
Cranial Base

SNA

83°

83°

0°

Mandible to
Cranial Base

SNB
SN-Go-Gn
FMA

76°
35°
26°

78°
34°
25°

2°
1°
1°

Maxillo-
Mandibular

ANB

7°

5°

2°

Maxillary
Dentition

1 to NA (mm)
1 to SN
6-6 (mm) (casts)

5
103°
51

2
101°
51

3
2°
0

Mandibular
Dentition

1 to NB (mm)
1 to Go-Gn
6-6 (mm) (casts)
3-3 (mm) (casts)

8
103°
49
26

4
88°
47
26

4
15°
2
0

Soft Tissues

Esthetic Plane
Z - Angle

5
56°

0
73°

5
17°