Since before recorded history, a variety of oral hygiene measures have been used for teeth cleaning. This has been verified by various excavations done all over the world, in which chewsticks, tree twigs, bird feathers etc have been recovered.
Many people used different forms of teeth cleaning tools. Indian medicine (Ayurveda) has used the neem tree (a.k.a. daatun) and its products to create teeth cleaning twigs and similar products for millennia. A person chews one end of the neem twig until it somewhat resembles the bristles of a toothbrush, and then uses it to brush the teeth.
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