Home Medical Dictionary S S-N-A angle
Medical Term:

S-N-A angle

 

Definition: in cephalometrics, an angle measuring the anteroposterior relationship of the maxillary basal arch on the anterior cranial base; it shows the degree of maxillary prognathism.

[sella-nasion-subspinale (or point A)]

See Also: subspinale

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Examples: glitazone, GI cocktail, etc.
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