toothbrush
YEAR: 1498
PLACE: China
IMPROVEMENTS
- To reach the most distant teeth.
- It prevents diseases.
- Dental hygiene.
NEGATIVE EFFECTS
Nothing.
https://www.loc.gov/rr/scitech/mysteries/tooth.html
NEGATIVE EFFECTS
Nothing.
https://www.loc.gov/rr/scitech/mysteries/tooth.html
hahahahaah
ResponderEliminarThe most expensive toothbrush in the world xd
ResponderEliminarThis picture is not free to use, but it is a nice example.
ResponderEliminarWhere is the reference? Remember to cite the source of information.
The best improvement is to reach the most distant teeth