Measurements of the mandibular and mental foramina (lateral aspect).
13. Distance between the caudal mental foramen and the caudal border of the mandible; 14. Distance between the middle and caudal mental foramina; 15. Distance between the middle mental foramen and the canine alveolus; 16. Diastema (C – PM3); 17. Distance between the dorsal limit of the caudal mental foramen and the alveolar margin of the mandibular body; 18. Distance between the ventral limit of the caudal mental foramen and the ventral margin of the mandibular body; 19. Distance between the middle mental foramen and the alveolar margin of the mandibular body; 20. Distance between the ventral margin of the middle mental foramen and the ventral margin of the mandibular body