Dental Opinion, The First Official Commercial Toothbrush
In 1938 is when the first official commercial toothbrush was manufactured. During the 1900s, celluloid handles gradually replaced bone handles in toothbrushes.Natural animal bristles were also replaced by synthetic fibers, usually nylon, by DuPont in 1938. The first nylon bristle toothbrush, made with nylon yarn, went on sale on February 24, 1938.