Take its shape, for example ... they may unconsciously press the tongue against the teeth. “Conditions like obstructive sleep ...

These are teeth located on a snail’s “tongue ... in shape from rounded (1) to very sharp and pointed (2). This image has been colored to indicate the depth (distance) that each element of the image is ...

Sure, we all know that you should brush your teeth twice a day ... cover more ground on your tongue, but usually require two hands to use. T-shaped ones are most like toothbrushes and easier ...