A small opening changes the squeeze
Toothpaste is thick, but it still flows when pressure pushes it through the tube’s nozzle. A wider opening offers less resistance, so an ordinary squeeze can send out a broader ribbon—and more paste before you have time to stop. The result can look like a neat stripe on the brush while quietly exceeding what you meant to dispense.
The opening is only part of the control. How hard and how long you squeeze, and where you aim the nozzle, also affect the amount. But when the opening is generous, a brief squeeze is less forgiving: the paste can spread across more of the brush head and make the extra hard to notice.
The cost of an unnoticed extra
Each oversized squeeze uses up the tube faster. The added amount may seem trivial at the sink, but repeated twice a day, it means fewer brushings from the same tube and more frequent replacement. That turns a minor bathroom habit into a small recurring expense—and a little more product consumed than needed.
A smaller squeeze is easier to judge if you stop before the paste fills the brush head. The practical point is not that every wide nozzle has the same purpose, but that its size makes the amount delivered with a casual squeeze harder to control.
