enamel It has high mechanical resistance, which is why it is difficult to recreate it in laboratory conditions. Throughout history, dentists have used just about everything Tooth filling From beeswax, through mercury compounds to modern ceramics. Perhaps synthetic enamel will soon be added to the dental arsenal.
Scientists at the University of Michigan invented a new material Mimics the basic properties of enamel: It is strong and flexible. This material can be used to better strengthen broken bones as well as dental fillings. The results were published in the journal “Science”.
Natural enamel does the job protect our teethBut it’s loaded with mouth bacteria, acidic food, chewing, and even speech. deteriorates over time.
You’ve been wearing the same set of teeth for 60 years, maybe even longer. Thus the enamel is subjected to tremendous chemical and mechanical stress. Unlike bone, the human body cannot regenerate enamel, said Nicholas Kotov of the University of Michigan, the study’s lead author.
Hard, flexible materials are the hardest to recreate. The secret of the enamel lies in its structure – Consists of millions of closely packed stamens Calcium Phosphatewhich can be seen under an electron microscope. Thanks to this arrangement of crystals, they may bend slightly under pressure, but at the same time they do not disintegrate. Synthetic enamel mimics this formation by attaching calcium phosphate rods to flexible polymer chains.
Kotov’s team was formed New tooth-shaped materialThe cracks caused by high pressure and temperature are then examined. And it turned out that the substance is stronger than natural enamel. Unfortunately, it is currently unknown whether the created material reproduces the three-dimensional structure of human enamel.
new material Can be used in dentistry, but also to strengthen bones in people with osteoporosis. Perhaps they could also be used to create improved pacemakers and so-called smart teeth. Such a device can monitor the breath and bacteria in the mouth for any pathological abnormalities.
Artificial glazing is still the tune of the future. It is not known if the materials created will be affordable and biocompatible. This will only be shown by subsequent tests.
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