Table 1 The reference landmarks and planes
Definition | |
|---|---|
ANS | Point of Anterior nasal spine |
ANS-3 | Point is 3 mm below ANS |
CEJ | The lowest point of the cemento-enamel junction on the labial surface of the cleft side central incisor |
GPF-r | Right side greater palatine foramen |
GPF-l | Left side greater palatine foramen |
[Y-inf] | Plane passing through CEJ, GPF-r, and GPF-l |
[Y-sup] | Plane parallel to [Y-inf] and passing through ANS-3 |