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asked 7 months ago
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Tooth brush is one of the most useful inventions in the history of man kind. It is basically used to clean teeth. It is used with a toothpaste as it aids in cleaning and also contains an essential nutrient called Fluoride.
Oral Hygiene is required by each and everyone around us. Its history is as old as we are. Different forms of toothbrush were used in history such as Neem tree,miswak etc.
The first kind of modern toothbrush dates back to late 1400's which was developed in China. The first patent for a toothbrush was by H.N. Wadsworth in the year 1857.
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