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.
Farlex Partner Medical Dictionary © Farlex 2012

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.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
In this model, the theory of variable slopes with various mean stresses for the S-N lines was introduced, and the exponent 2 of the Gerber equation was modified as a variable.
Based on the existing fatigue data of various laminate materials, the study shows that the slopes of the S-N lines under different mean stresses are variable.
Effect of Mean Stress on the Fatigue Life Prediction of Notched Fiber-Reinforced 2060 Al-Li Alloy Laminates under Spectrum Loading
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