Toothbrush
device · 1780 · Industrial Revolution
A brush for cleaning teeth.
What it is made of
- Toothbrush bristles — has part. Tufts of nylon filaments.
- Handle — has part. A plastic handle.
Principles and materials it uses
- Toothpaste — uses. Toothpaste.
- Nylon — is made of. Nylon bristles (1938).
- Bone — is made of. Addis’s toothbrush has a bone handle.
- Plant fibre — is made of. The bristles were hog hair, later nylon.
History: what it evolved from and what it influenced
- Electric toothbrush — evolved into. A motorized toothbrush.