Dental implants, also known as implant dentures, are known as the “third set of human teeth”. Dental implants are one of the ideal choices for restoration of missing teeth, and compared with traditional dentures, they have many outstanding advantages: 1, its chewing function is much better than many traditional dentures; 2, it has strong retention and stability, and can be rooted in the oral cavity like real teeth; 3, it can be used to grind less or not to grind one’s own teeth; 4, it doesn’t need the necessary abutments and rings of movable dentures, and it doesn’t have the dullness of taste and uncomfortableness caused by the large plastic abutments; 5, it is small in size, doesn’t show metal, is beautiful, and is good for keeping oral hygiene. There is no dullness of taste and discomfort caused by large plastic base; 5, small size, no metal exposure, beautiful, and conducive to maintaining oral hygiene. Dental implants can be used for various types of missing teeth, but not every patient with missing teeth can be implanted with dental implants. A professional physician should first conduct an oral examination, model analysis, oral CT or panoramic x-ray film and necessary blood tests to determine whether the surgery is suitable. Based on the changes in the patient’s alveolar bone and jawbone after tooth loss, the surgeon chooses a suitable implant system, implants a root-shaped implant into the jawbone as an artificial tooth root, and then installs a crown on its implant post exposed in the mouth to obtain a form and function similar to that of the autogenous tooth. People who have had dental implant surgery have a 5-year tooth survival rate of over 95%, and a 10-year implant survival rate of around 90%. In general, the lifespan of dental implants is usually more than 40 years. However, it should be noted that: the service life of dental implants is not static, its life expectancy is not only related to the treatment is good or bad, but also with the patient’s physical condition, the use of the care situation, which is also the determining factor of the service life of the dental implants, if you do not carefully and conscientiously care for the real teeth may fall out of a mouth full of light, dental implants, although a little more than the real teeth to be stronger, but it is difficult to escape from the danger of falling out. Therefore, patients must strictly follow the doctor’s instructions for the maintenance of dental implants, so that dental implants will be more effective and longer service for patients.