Find out more about Lawrence Park Orthodontics
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Did you Know?

The Egyptians first invented toothpaste some 5,000 years ago. It was a crude mixture of wine and pumice. From the early Roman Empire until eighteenth-century Europe and America, urine was a main ingredient in toothpaste, because the ammonia in it is an excellent cleaner. Ammonia is still a main ingredient in many types of toothpaste.

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The Chinese are credited with inventing the first toothbrushes in the late 1400s. The bristles were made of hog bristles, which were highly effective and popular. The invention of nylon replaced them.

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Mao Zedong, like many Chinese of his time, refused to brush his teeth. Instead, he rinsed his mouth with tea and chewed the leaves. Why brush? "Does a tiger brush his teeth?" argued Mao. Chairman Mao also loved to chain-smoke English cigarettes. When his doctor asked him to cut down, he explained, "Smoking is also a form of deep-breathing exercise, don"t you think?"

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