S-N line

S-N line

a line connecting a point (S) representing the center of the sella turcica with the frontonasal junction (N); it denotes the anterior portion of the cranial base in cephalometrics.

S-N line

(līn)

Line connecting a point (S) representing center of sella turcica with frontonasal junction (N); denotes anterior portion of cranial base in cephalometrics.