The thing we all use to clean our teeth.  Credits:"Arroz Con Pollo" Kevin MacLeod (incompetech.com)Licensed under Creative Commons: By Attribution 4.0 Licensehttp://creativecommons.org/licenses/by/4.0/

The thing we all use to clean our teeth. Credits:"Arroz Con Pollo" Kevin MacLeod (incompetech.com)Licensed under Creative Commons: By Attribution 4.0 Licensehttp://creativecommons.org/licenses/by/4.0/

The thing we all use to clean our teeth. &nbsp;Credits:"Arroz Con Pollo" Kevin MacLeod (incompetech.com)Licensed under Creative Commons: By Attribution 4.0 Licensehttp://creativecommons.org/licenses/by/4.0/

Toothbrush

We will be discussing different inventions that don't get as much recognition as significant inventions such as the light bulb.

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Toothbrush

Toothbrush