Table 9 Showing CBCT landmarks.

1- Anterior nasal spine

ANS

Most anterior point on the tip of the anterior nasal spine

2- Posterior nasal spine

PNS

Most posterior point on the hard palate at the tip of the post nasal spine

3- Incisive foramen

IF

The most posterior point at the opening of the incisive foramen at midline from the occlusal view

4- Maxillary Right canine cusp tip

UR3-tip

The most incisal point on the maxillary right canine cusp tip

5- Maxillary Right canine root apex

UR3-apex

The most apical point at the apex of maxillary right canine

6- Maxillary right canine center

UR3-C

The mid-point between the UR3-tip and UR3-apex on the maxillary right canine long axis

7- Maxillary left canine cusp tip

UL3- tip

The most incisal point on the maxillary left canine cusp tip

8- Maxillary left canine root apex

UL3- apex

The most apical point at the apex of maxillary left canine

9- Maxillary left canine center

UL3-C

The mid-point between the UL3-tip and UL3-apex on the maxillary left canine long axis

10- Maxillary right first molar mesiobuccal cusp tip

UR6MB-cusp

The point at the maxillary right mesiobuccal cusp tip

11- Maxillary right first molar Distobuccal cusp tip

UR6DB-cusp

The point at the maxillary right distobuccal cusp tip

12- Maxillary right first molar mesiobuccal root apex

UR6MB-apex

The point at the maxillary right mesiobuccal root apex

13- Maxillary right first molar center

UR6-C

The mid-point between the UR6MB-cusp and UR6MB-apex on the maxillary right first molar long axes

14- Maxillary left first molar mesiobuccal cusp tip

UL6MB-cusp

The point at the maxillary left mesiobuccal cusp tip

15- Maxillary left first molar distobuccal cusp tip

UL6DB-cusp

The point at the maxillary left distobuccal cusp tip

16- Maxillary left first molar mesiobuccal root apex

UL6MB-apex

The point at the maxillary left mesiobuccal root apex

17- Maxillary left molar center

UL6-C

The mid-point between the UL6MB-cusp and UL6MB-apex on the maxillary left first molar long axes