Dental Floss
Dental floss is an ancient invention. Researchers have found dental floss and toothpick grooves in the teeth of prehistoric humans. Levi Spear Parmly (1790-1859), a New Orleans dentist, is credited as the inventor of modern dental floss. Maybe the term re-inventor would be more accurate. Parmly promoted teeth flossing with a piece of silk thread in 1815.
In 1882, the Codman and Shurtleft Company of Randolph, Massachusetts started to mass-produce unwaxed silk floss for commercial home use. The Johnson and Johnson Company of New Brunswick, New Jersey was the first to patent dental floss in 1898. Dr. Charles C. Bass developed nylon floss as a replacement for silk floss during WW II. Dr. Bass was also responsible for making teeth flossing an important part of dental hygiene.

