Final answer:
The contour of the interdental papillae around teeth #23 through #25 can be described as filliform papillae.
Step-by-step explanation:
The term that best describes the contour of the interdental papillae around teeth #23 through #25 is "filliform papillae." Interdental papillae are the triangular-shaped gum tissues that fill the spaces between adjacent teeth. These papillae vary in shape and size. In the case of teeth #23 through #25, the filliform papillae would be present to help with the function of the teeth in mashing and chewing food.