anterior nasal spine
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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