Under normal circumstances, the life of porcelain teeth for about 5-10 years, the specific life and materials, care measures and other factors closely related. At present, there are many types of porcelain teeth, according to the production materials, can be divided into metal porcelain teeth, all-porcelain teeth two types. Metal porcelain teeth are mainly made of gold, silver, copper and other metal materials, and their service life varies from 5-7 years. However, some people pay special attention to daily care, such as paying attention to oral hygiene, avoid contact with hard food, regular follow-up examinations, etc., the specific life of metal porcelain teeth may also be properly extended. With the development of all-porcelain dental manufacturing process, the life span of porcelain teeth is more advantageous than traditional metal porcelain teeth, which can be used for 7-10 years, or even longer. Porcelain dental installation is completed, the patient’s mouth may appear discomfort symptoms for a short time, generally do not need to be overly nervous, but if the discomfort continues, or pressure, pain symptoms, should be promptly to the Department of Dentistry for follow-up.