Question

Which substance were used earlier clening teeth​

Answer 1

Answer:

Early tooth powders were made from something abrasive, like talc or crushed seashells, mixed with essential oils, such as eucalyptus or camphor, thought to fight germs. Their flavors came from oils of cinnamon, clove, rose or peppermint. Many contained other chemicals such as ammonia, chlorophyll and penicillin.

Answer 2

Answer:

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Explanation:

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