The toothbrush is yet another simple but very important invention that has been a part of everyday life for people for over a thousand years, helping in keeping our choppers clean and in good health. <hr><p style='color:grey; font-size:0.75em;'> Hosted on Acast. See <a style='color:grey;' target='_blank' rel='noopener noreferrer' href='https://acast.com/privacy'>acast.com/privacy</a> for more information.</p>