Modern nylon bristle toothbrushes were first developed in 1938. However, early civilizations used slender twigs with tattered ends to brush teeth. The use of these "chew stick” started during 3000 B.C ...
The exhibit explores how toothbrushing became part of the oral hygiene routine and how the toothbrush evolved over time. The history of the toothbrush exhibit is now online, joining several other ...
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