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английский) 2:
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We are always told that we should clean our teeth regularly to keep them healthy<br>and to have a fresh breath. It is believed that people started using a kind of paste to<br>Clean their teeth around 5,000 years ago. However, the ingredients of these tooth<br>The powders were very different from ours. For example, the people of ancient Egypt<br>used salt, mint, dried flowers and pepper to create tooth powder. Later, in the 18th<br>century, in some countries in Europe, people brushed their teeth with burnt bread.<br>The first toothpaste appeared in 1890, in Great Britain. At first it was sold in jars.<br>Then special tubes were designed to make the toothpaste more comfortable to use.
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