anterior nasal spine

anterior nasal spine of maxilla

[TA]

a pointed projection at the anterior extremity of the intermaxillary suture; the tip, as seen on a lateral cephalometric radiograph, is used as a cephalometric landmark.

Synonym(s): spina nasalis anterior corporis maxillae [TA], anterior nasal spine

anterior nasal spine

the sharp anterosuperior projection at the anterior extremity of the line of union of the two maxillae.

an·te·ri·or na·sal spine

(an-tēr'ē-ŏr nā'zăl spīn)

A pointed projection at the anterior extremity of the intermaxillary suture; the tip, as seen on a lateral radiograph, is used as a cephalometric landmark.

anterior nasal spine

The projection formed by the anterior prolongation of the inferior border of the nasal notch of the maxilla.

See also: spine