Porcelain teeth are a relatively common dental restoration. Some patients find that the edges of their gums are blue or black after having porcelain teeth. What is the reason for this? What is the reason for this? It turns out that the porcelain teeth generally called are not all porcelain. Its structure is similar to the previous enamel jar, with porcelain on the outside and a layer of metal on the inside. If the oxides on the metal layer are not cleaned up or if inflammation of the gums causes metal oxidation, the metal oxides will penetrate into the gum tissue and the color of the gums will change. Once the gums are stained, it is difficult to treat. Therefore, it is recommended that you get a precious metal porcelain crown. Fixed dentures are medically called fixed dentures or fixed bridges. It fixes the dentures on the good teeth on both sides, and the patient does not need to take them off or put them on. Porcelain fixed dentures have realistic colors, similar shapes to real teeth, no obvious foreign body sensation, and high chewing efficiency. Wuxi Tongji plastic surgery experts said that there are actually many kinds of materials for porcelain teeth, mainly as follows: nickel-chromium alloy porcelain teeth, cobalt-chromium metal porcelain teeth, titanium and titanium alloy porcelain teeth, and precious metal porcelain teeth. , all-ceramic teeth. Depending on the materials used for porcelain crowns, the price of porcelain crowns ranges from a few hundred yuan to several thousand yuan each. For patients with missing front teeth, what kind of porcelain teeth are best? If the patient's financial situation allows, it is generally recommended to use precious metal porcelain and all-ceramic teeth. Because these two types of porcelain have little irritation to the gums and periodontal tissue. Even after using it for several years, you don’t have to worry about the metallic black line staining the gum edges. Especially for all-ceramic teeth, the outer crown is lifelike and translucent. For patients with missing back molars, it is recommended to choose moderately priced and slightly higher hardness titanium alloy porcelain.