According to a large amount of clinical data research shows that the life of porcelain teeth is often affected by many factors such as internal and external, once received the impact of these factors, the life will be greatly reduced. The following is a brief introduction to several factors that affect the life of porcelain teeth: 1, the quality and design of porcelain teeth If the porcelain teeth are not designed properly, there is a risk of denture fracture or real teeth loosening due to excessive force, thus affecting the normal use of porcelain teeth. The ceramics that make up the external form of porcelain teeth provide good aesthetic results while not being able to avoid its own shortcomings, which is the problem of brittleness. Therefore, improperly designed and fabricated crowns subjected to greater occlusal pressure can cause the ceramic to crack or even shatter, or the ceramic to peel off from the metal surface. 2, the biological stability of the materials used In our country, the national more metal porcelain teeth, metal porcelain teeth metal inner structure not only provides reliable strength, but also and oral soft and hard tissue in close contact with the performance of the good and bad, directly affect the physiological health of the oral cavity. Biologically stable, precision-made porcelain dental metal lining structure, and oral hard and soft tissue “peaceful coexistence”, with the overall oral environment in harmony, become part of the patient’s oral environment. On the contrary, the poor biological stability of the alloy material will produce adverse stimulation of the surrounding tissue, prone to corrosion, unstable metal ion leakage, tissue allergy and other phenomena, resulting in gingivitis, periodontitis, gingival margin black line (now reported nickel-chromium porcelain teeth), if the crown and teeth do not fit, and even lead to restoration of tooth decay and other adverse reactions. 3, the edge of the porcelain dental seal Porcelain teeth are fixed on the polished teeth through adhesives, the gap between the porcelain teeth and real teeth rely on the adhesive material seal, therefore, the closer the crown and teeth, the smaller the gap between the two, the more conducive to the preservation of natural teeth. Otherwise, the larger the gap between the two, or the poor quality of the adhesive, will lead to germs into the gap caused by the corrosion of natural teeth, thus affecting the service life of porcelain crowns. The better the production process of porcelain teeth, the better the edge closure. Poorly manufactured porcelain teeth precision, poor fit, the gap will also be large. 4, the use of porcelain teeth patients themselves If you have to use your porcelain teeth to bite hard objects, or do not pay attention to oral hygiene, then your own real teeth will be bad, not to mention porcelain teeth? Therefore, the service life of your porcelain teeth has a great deal to do with your own use. So how should I extend the life of porcelain teeth? Experts here to give you one of the most effective and simple advice, is in the decision to do porcelain teeth money, choose a regular authoritative dental hospital, under the introduction of oral surgeons, choose a good metal material or all-porcelain teeth, but also to do a good job of daily maintenance of porcelain teeth, only then, can effectively extend the life of porcelain teeth.