American dentist, Levi Spear Parmly, was an advocate of flossing in the 1800s. Parmly had difficulty convincing a skeptical public that running a silk thread between the teeth would arrest tooth decay, while it simultaneously promoted healthy gums. During that time,
American dentist, Levi Spear Parmly, was an advocate of flossing in the 1800s. Parmly had difficulty convincing a skeptical public that running a silk thread between the teeth would arrest tooth decay, while it simultaneously promoted healthy gums. During that time,