In this course “introduction to product design” guided by Prof. Frank Hess, we were told to observe how we do a certain job rather than just to look at the tools we use as an isolated object. Thus this project is called “brushing teeth” and not “toothbrush”.
My problems while brushing teeth mainly come from toothbrush handles. I always felt the necessity of anti slip feature being overemphasized, and such “ergonomic” handles just look like some naughty toys. Disturbing, especially when I brush my teeth in the morning with a fuzzy head. So I decided to make some quiet ones, something like a breeze on the new snow. The first one has a gentle twist (not so obvious on picture), the second one has a shoulder for the thumb (gives haptic reassurement). A firm grip offers the grainy hard plastic / ceramic surface. The length and diameters in different sections are set upon test results of different toothbrushes I bought. (Jul 2005)