With the popularity of porcelain teeth, more and more people in Shengzhou choose this kind of inlay. So how long can porcelain teeth last after inlay? It's like buying a car. How long can a car last? It is difficult to have a specific statement, which has a lot to do with the frequency of use and the usual maintenance methods. If used well, it can run more than one million kilometers, and if used improperly, it will be scrapped on the same day. The same is true for porcelain teeth, which also need regular maintenance. To sum up, the life and quality of a pair of porcelain teeth are closely related to the following factors: 1, the condition of the teeth themselves. The service time of porcelain teeth is closely related to the condition of the teeth themselves. Generally speaking, if the teeth themselves are thick and long, it will take a long time to make porcelain. If it is a denture, the more missing teeth, the shorter the use time. The more good teeth you wear, the longer it will take (that can't be the reason why you wear too many! )。 If the crown is used to protect the dead pulp teeth, the more remaining tooth tissue or post-core reinforcement, the longer the service life. 2. Your doctor's level: If the doctor's level is relatively high, the porcelain made will definitely last longer. The technical level of clinicians is the key factor to evaluate the service life of porcelain teeth. The degree of microleakage is determined by the tightness between the braces and teeth, that is, the size of the gap between them. The more obvious the microleakage, the easier it is for the teeth in the braces to rot. Generally, the gap should be about 30 microns, which requires dentists to prepare teeth into good shapes after good specialist training to meet the processing requirements. 3. Maintenance in use: teeth should be maintained in use, and your own teeth should also be maintained, including porcelain teeth. The most important thing is periodontal care, which means keeping teeth clean and healthy. If the periodontal condition is not well maintained, the teeth will loosen and fall off, as will porcelain teeth. Therefore, keeping your periodontal health has a vital impact on the service life of porcelain teeth. 4. Material selection: Under the condition that other conditions remain unchanged, of course, the selected materials can be used for a longer time. Generally speaking, expensive materials are better, have better sealing performance and are less irritating to gums. 5. Usage: Usage is also very important. Eating cakes with porcelain every day is definitely different from eating ribs with porcelain every day. What porcelain teeth are most afraid of is that they are exposed to things that are too hard and easy to collapse. In short, the service life of a porcelain tooth that has been strictly, standardized, correctly operated, designed and manufactured by a regular doctor, research shows that about 65% of ordinary alloy porcelain teeth can be used for more than 20 years, which depends on the patient's own care. If you don't brush your teeth and chew casually, it will greatly reduce its service life. When you brush your teeth carefully, go to the hospital to wash your teeth regularly, and do not eat very hard food (normal use) to make high-grade and expensive alloy porcelain teeth, then its life can reach its life. A good porcelain tooth depends on the standardized operation of clinicians, correct design, professional restoration theory and the close cooperation of technicians, otherwise it is difficult to achieve the ideal restoration effect. We often say that porcelain teeth are generally divided into metal porcelain teeth and all porcelain teeth; Metal porcelain teeth are divided into non-precious metal porcelain teeth, titanium metal porcelain teeth and precious metal porcelain teeth. Non-precious metal porcelain teeth are made of nickel-chromium alloy, and the metal crown is made of high temperature porcelain. Because of its relatively low price, it is widely used in China at present. However, this porcelain tooth has the following disadvantages: poor edge tightness; It has poor biocompatibility with human body. After some patients wear it for a period of time, there will be "black lines" in the gingival tissue at the edge of the neck. There are even medical reports of allergic reactions caused by porcelain teeth abroad; Furthermore, because of the mismatch of thermal expansion coefficient between Ni-Cr alloy and porcelain, porcelain collapse is easy to occur in clinic. The inner crown of precious metal porcelain consists of more than 80% gold and trace elements such as platinum or rhodium. Although the price is higher, it has obvious advantages: because the gold alloy crown reflects the luster of natural teeth in the sun, it has good biocompatibility and is safe to use; High sealing performance; The combination of porcelain and metal is very good, and there are few cases of porcelain collapse. So it is widely used in Europe, America and other countries. In addition, it is worth mentioning that there are pure titanium porcelain teeth, which is a mature metal porcelain tooth technology gradually developed in recent years. Metal titanium is a kind of bio-metal, its biggest feature is that it has no toxic and side effects on human body and has the best biocompatibility. It is only because of the high processing difficulty that it gradually became popular in recent years. All-ceramic teeth, as the name implies, are porcelain-fused-to-metal techniques without metal inner crowns. Because there is no limitation of metal, it reflects the level and color of teeth to the greatest extent, so all-ceramic teeth have the best aesthetic effect; And porcelain is safe and has no irritation to human body. However, due to the influence of porcelain strength, it is widely used to make porcelain veneers, porcelain inlays and porcelain crowns for anterior teeth. Generally speaking, the life span of a porcelain tooth is about ten years.