Table 1 14 Landmarks selected for the study
Landmark name | Anatomic region | Lateral view | Axial view | Anteroposterior view |
|---|---|---|---|---|
1. Left/Right lower incisal alveolar ridge (lLIAR) / (rLIAR) | Premandbula alveolar | Anterior–Superior–most point | Anterior-most point | Middle point in the nteroposterior slice determined by the lateral and axial view |
2. B point (B) | Anterior surface of the mandibular symphysis | Posterior-most point | Middle-anterior–most point on the anterior contour | Middle point in the anteroposterior slice determined by the lateral and axial views |
3. Pogonion (Po) | Contour of the bony chin | Anterior-most point | Middle-anterior–most point on the anterior contour | Middle point in the anteroposterior slice determined by the lateral and axial views |
4. Gnathion (Gn) | Contour of the bony chin | Anterior-inferior–most point | Middle-anterior-inferior–most point | Inferior-most point |
5. Menton (ME) | Lower border or the mandible | Inferior-most point | Middle-inferior–most point | Inferior-most point |
6. Left /Right mandibular gonion(lGo)/ (rGo) | Angle of the left/ right mandibular body | Middle point along the angle | Posterior-most point | Inferior-most point |
7. Left/Right ramus point (lRP)/(rRP) | Posterior border of the left/ right mandibular ramus | Middle-posterior–most point between the condylar neck and the angle of the mandibular body | Middle-posterior–most point | Inferior-most point |
8. Left/ Right condylion (lCo)/ (rCo) | Left /Right condyle | Superior-most point | Middle point in the axial slice level determined by the lateral and anteroposterior views | Middle-superior–most point |
9. Left/Right posterior mandibular condyle(lPCo)/ (rPCo) | Left//Right condyle | Posterior-most point | Middle-posterior–most point | Middle point in the anteroposterior slice determined by the lateral and axial view |