is generally easier to see and grab the loose sheet, and the paper is kept farther away from the wall behind the holder. Some hygiene experts argue that this can reduce the chance of the paper touching a potentially dirty surface.
There is also a famous historical detail that seems to support the “over” camp.
What Does the Old Patent Show?
In 1891, inventor Seth Wheeler received a U.S. patent for perforated toilet paper. Illustrations accompanying the patent show the paper coming over the top of the roll.
That
