Artificial dental implants are not planted teeth, but metal tooth roots are inserted into the dental bone, and then dentures are installed on them after the metal tooth roots are tightly integrated with the alveolar bone, just like the deep foundation that must be laid before building a house in order to make the house firm and stable. Artificial dental implants are more stable than traditional dentures, not easy to move, more popular. Dental implants have three major advantages compared with traditional dentures: when missing one or a few teeth, traditional fixed dentures must first grind down the two teeth on the edge of the missing teeth area as a pillar to stabilize the dentures, so that the dentures will be firm, and the movable dentures have to be made into a large base plate as a base, which makes the person feel uncomfortable and have a sense of foreign body. On the other hand, artificial dental implants can be directly implanted in the missing teeth area to fix the denture without losing other teeth and without foreign body and discomfort. In the case of all missing teeth in the back of the molar area, only movable dentures could be installed in the past. However, the chewing function of movable dentures is poor, and the metal hooks of dentures are easy to catch dirt, which is not easy to clean, and the metal hooks are also easy to be exposed, which affects the aesthetics. Artificial dental implants do not have these disadvantages. When a mouth full of missing teeth, must make a full mouth dentures, traditional dentures due to only rely on the support of the soft tissues of the mucous membrane of the dental bed, the fixed force is weak, not only dentures are easy to loosen but also chewing function is not good, only to restore the normal function of the 30% to 40% only. In addition, if the gums are not properly stressed, the alveolar bone will gradually shrink, and the effect of dentures is getting worse and worse. Artificial dental implants do not move or chewing function is not good, and in the implantation site of the alveolar bone, dental implants on the formation of functional stimulation, delayed alveolar bone resorption, so some people in the medical profession said that artificial dental implants is the third human teeth.