Interproximal Spaces Lie Between Teeth and Bone on One Side

Multiple Choice

Interproximal spaces lie between teeth and bone on one side and the proximal surfaces and their contact area on the other side.Interproximal spaces are U-shaped in posterior regions and more rounded in anterior regions.

A) Both statements are true.
B) The first statement is true;the second statement is false.
C) The first statement is false;the second statement is true.
D) Both statements are false.