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Toothbrushes are the most important instrument in maintaining of oral hygiene. At first they were made from primitive materials that grew their own bacteria but today we have toothbrushes that do their job much better.
Since the ancient times, we try to keep our mouth and teeth clean. Until we found out how bacteria work, we used some pretty unsanitary methods for that but in time we learned and today our hygiene standards are pretty high. Read more about history of oral hygiene.
Forms of cosmetic dentistry existed since the ancient times and since people found out that they can use other materials to replace missing teeth or that they can make them white again. Today it is an important branch of dentistry.
Tooth decay is one of the oldest diseases of the human race. People had caries for millions of years and still have it today. With the appearance of sugar cane and other types of sugar prevalence of caries increased and until the modern treatments of caries, both preventive and remedial, lessen the number and seriousness of caries cases.