関連ワード:  when was toothbrush and toothpaste invented    when was toothbrushes and toothpaste invented    when was the first toothbrush and toothpaste invented    what came first toothbrush or toothpaste    when did we start using toothpaste    when was the first toothpaste invented  
結果 : when was toothbrush and toothpaste invented

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4:29

How the Toothbrush Was Invented

History Scope
68,577 回視聴 - 7 年前
7:53

How did people clean their teeth before toothpaste was invented?

Mystery Science
2,808,728 回視聴 - 4 年前
18:34

Toothpaste: A History of Oral Hygiene

The History Guy: History Deserves to Be Remembered
48,666 回視聴 - 2 年前

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3:00

Who invented the Toothbrush?

Fascinating Facts
694 回視聴 - 6 年前
19:22

歯ブラシの進化！！

Dental Digest
1,663,734 回視聴 - 1 年前