1. MSR – Mid-sagittal reference plane
2. Co-MSR – Condylion - Mid-sagittal reference plane
3. J-MSR – Jugal Process - Mid-sagittal reference plane
4. Ag-MSR – Antegonial notch - Mid-sagittal reference plane
5. Co-Ag – Condylion - Antegonial notch plane
6. Buccal surface of 1st molar - J – Buccal surface of 1st molar – Jugal Process
7. Cg-J – Crista galli - Jugal Process plane
8. Cg-Ag – Crista galli - Antegonial notch plane
9. Co-Me – Condylion - Menton plane
10. Ag- Me – Antegonial notch- Condylion plane
11. Gonial angle (Go ang)