What are zirconia porcelain teeth?

With the development of oral cavity, most of the teeth made in the future are all-ceramic and precious metal porcelain teeth. Precious metals are well known. In the vernacular, it is precious metal porcelain with precious metals in porcelain teeth. All-ceramic is a porcelain tooth with no metal inside. Metal porcelain is familiar to everyone. Now let's talk about all-ceramic porcelain. All porcelains can be divided into three categories: cast porcelain, alumina and zirconia. Among them, there is not much difference in manufacturing technology between cast porcelain and alumina. Alumina is better than cast porcelain in price and hardness, worse than cast porcelain in aesthetics, and less transparent than cast porcelain. So the authenticity of teeth is very low. The above two kinds are very common in the market, and there is not much difference in price and performance. Let's focus on zirconia teeth. The hardness is 800Mpa made in China and imported 1200Mpa. At present, the best is 3M lava with intensity 1400Mpa. For patients, this data is actually no problem within 5 years, so when making posterior teeth, we should pay attention to whether our dental conditions are suitable for choosing all-ceramic teeth. Especially when missing teeth are used as porcelain bridges, we should consider them carefully. Of course, the hardness of the material is on the one hand, and now it is work. At present, most zirconia production in China is studied by hand, and patients who don't know can think so. Everyone must have seen a key. Just like that, the metal part of the porcelain tooth should be made first. Before matching the key to make the inside of zirconia, you can think about its fineness. The most delicate work is the CAD/CAM system, that is, the computer scans the tooth or the plaster model of the tooth, and then the zirconium block is cut by the computer. I made four 3M lava teeth a few days ago, and I can't compare them with CAD/CAM. Speaking of this, there must be patients who have the idea that foreign teeth are better than domestic ones. In fact, this view is wrong The technology of making porcelain teeth and all-ceramic teeth in China is much better than that in foreign countries, and even some foreign teeth will be brought to China for production. But China should work hard on oral materials. Personally, I suggest that if the patient has good dental conditions and good economic conditions, gold alloy porcelain or zirconia porcelain should be chosen when making posterior teeth. Of course, many doctors recommend pure titanium porcelain. In fact, pure titanium porcelain is easy to crack, but there is no difference in appearance between pure titanium porcelain and ordinary porcelain. In this way, the patient does not know what material the doctor is made of, and it is impossible to protect the patient by relying on the dental identification card. Therefore, doctors should not only recommend porcelain suitable for patients, but also take care of them!