I wonder if the international society of dentists keeps a standard molar in a safe somewhere

It is probably an indication that they should fix their caps lock keys, however. Like the guys who sells bottles with volumes in ML.

That would be 4.82x10²⁹ somethings wide.

> My interdental brushes claim that the wire is 0.8 megamolar wide, which is not a normal measure of width.

0.8 megamolar = 800,000 teeth? That, uh, seems pretty wide for an interdental brush.

0.8 Mmol?