When viewed from the side, or a profile view, a tooth that is sigmoidal
will have a slight elongaged "S" like shape. The term comes from a
mathematical function that produces a sigmoid curve — a curve having an
"S" shape.
The elongated "S" like shape onthe crown is referred to
as being sigmoidal in shape. Anterior goblin ( Scapanorhynchus
texanus ) Monmouth County, NJ
