Different Strokes for Different Folks: A History of the Toothbrush

The Clean-Be-Tween toothbrush

The Clean-Be-Tween toothbrush, patented in Los Angeles in 1938, was invented to provide an improved holder for toothbrushes having adjustable and replaceable brush heads. It was devoid of recesses prone to filling with “dentifrice and foreign matter” that render the brush unsanitary. In addition, projections of potential harm to the oral cavity and gums were absent.

“Bakelite” Wikipedia: The Free Encyclopedia. Wikimedia Foundation, Inc., 5 Feb. 2016. Web. 17 Mar. 2016; Jones, Fred A (1938) Tooth Brush. US Patent 2,133,704. Filed Sept 11, 1936, and issued Oct 18, 1938