| A43 | apex of the root of the tooth 43 |
| A45 | apex of the root of the tooth 45 |
| A46 | apex of the distal root of the tooth 46 |
| A47 | apex of the distal root of the tooth 47 |
| C13 | top of the crown of the tooth 13 |
| C15 | top of the cheek nodule of the tooth 15 |
| C16 | top of the distal cheek nodule of the tooth 16 |
| C17 | top of the distal cheek nodule of the tooth 17 |
| C43 | top of the crown of the tooth 43 |
| C45 | top of the cheek nodule of the tooth 45 |
| C46 | top of the distal cheek nodule of the tooth 46 |
| C47 | top of the distal cheek nodule of the tooth 47 |
| CeD43 | distal cervical point of the tooth 43 |
| CeD45 | distal cervical point of the tooth 45 |
| CeD46 | distal cervical point of the tooth 46 |
| CeD47 | distal cervical point of the tooth 47 |
| CeM43 | mesial cervical point of the tooth 43 |
| CeM45 | mesial cervical point of the tooth 45 |
| CeM46 | mesial cervical point of the tooth 46 |
| CeM47 | mesial cervical point of the tooth 47 |
| CM16 | top of the mesial cheek nodule of the tooth 16 |
| CM17 | top of the mesial cheek nodule of the tooth 17 |
| CM46 | top of the mesial cheek nodule of the tooth 46 |
| CM47 | top of the mesial cheek nodule of the tooth 47 |
| M43 | a point on the lower edge of the mandible in the projection of a straight line through points C43 and A43 |
| M45 | a point on the lower edge of the mandible in the projection of a straight line through points C45 and A45 |
| M46 | point on the lower edge of the mandible in the projection of a straight line through points C46 and A46 |
| M47 | a point on the lower edge of the mandible in the projection of a straight line through points C47 and A47 |
| P43 | upper point of the pulp chamber of the tooth 43 |
| P45 | upper point of the pulp chamber of the tooth 45 |
| P46 | top of distal corner of the pulp chamber of the tooth 46 |
| P47 | top of distal corner of the pulp chamber of the tooth 47 |
| PCeD43 | distal point of the pulp chamber of the tooth 43 in the cervical area |
| PCeD45 | distal point of the pulp chamber of the tooth 45 in the cervical area |
| PCeD46 | distal point of the pulp chamber of the tooth 46 in the cervical area |
| PCeD47 | distal point of the pulp chamber of the tooth 47 in the cervical area |
| PCeM43 | mesial point of the pulp chamber of the tooth 43 in the cervical area |
| PCeM45 | mesial point of the pulp chamber of the tooth 45 in the cervical area |
| PCeM46 | mesial point of the pulp chamber of the tooth 46 in the cervical area |
| PCeM47 | mesial point of the pulp chamber of the tooth 47 in the cervical area |
| X01 | ratio between section |C13C43| and section |C15C45| |
| X02 | ratio between section |C13C43| and section |C16C46| |
| X03 | ratio between section |C13C43| and section |C17C47| |
| X04 | ratio between section |C15C45| and section |C16C46| |
| X05 | ratio between section |C15C45| and section |C17C47| |
| X06 | ratio between section |C16C46| and section |C17C47| |
| X07 | ratio between section |C43A43| and section |P43A43| |
| X08 | ratio between section |C45A45| and section |P45A45| |
| X09 | ratio between section |C46A46| and section |P46A46| |
| X10 | ratio between section |C47A47| and section |P47A47| |
| X11 | ratio between section |CeM43CeD43| and section |PCeM43PCeD43| |
| X12 | ratio between section |CeM45CeD45| and section |PCeM45PCeD45| |
| X13 | ratio between section |CeM46CeD46| and section |PCeM46PCeD46| |
| X14 | ratio between section |CeM47CeD47| and section |PCeM47PCeD47| |
| X15 | ratio between section |C43M43| and section |A43M43| |
| X16 | ratio between section |C45M45| and section |A45M45| |
| X17 | ratio between section |C46M46| and section |A46M46| |
| X18 | ratio between section |C47M47| and section |A47M47| |
| X19 | ratio between section |A43M43| and section |A45M45| |
| X20 | ratio between section |A43M43| and section |A46M46| |
| X21 | ratio between section |A45M45| and section |A46M46| |