a fork
Because you grind your teeth.
4
It is 4!
The four spike-like pointed things on a fork are called tines.
A fork or spoon.
There are between three and four prongs or tines on a fish fork.
Fork prongs are called tines.
No, the correct phrasing is "four teeth." The word "teeth" is the plural form of "tooth."
fork
A fork, either used as a culinary utensil (knife, fork and spoon), or as a gardening tool (garden fork), or as a farming tool (pitch-fork).
scissors,knife,fork,teeth and blade are five examples of wedges