Dental implants are internationally recognized as the preferred means of restoring missing teeth and are the ideal choice for those who have lost teeth. If you have lost your teeth due to disease or accident, dental implants are the best and the closest option to natural teeth among various restorative methods. 1. No damage to neighboring teeth: Porcelain bridge is the traditional restoration method for missing teeth, but it requires grinding down the healthy teeth on both sides of the missing teeth, which is a great pity; whereas dental implants are placed in the alveolar bone of the missing teeth as the basis for restoring the missing teeth, which does not involve neighboring teeth and will not damage them. 2.Stable and reliable: The implant (i.e. artificial root) is connected to the alveolar bone through osseointegration, which is very strong, no less than the natural root of human teeth, and can be rooted in the patient’s mouth like a real tooth. 3, the principle of more scientific: natural teeth will be chewing pressure in the mouth through the root to the alveolar bone, and dental implants will be chewing pressure through the artificial root (implant) to the alveolar bone, the same biomechanical principle, so it can withstand the strong force, chewing efficiency than the traditional dentures have a substantial increase. The traditional porcelain bridge is fixed to the natural teeth on both sides of the missing tooth gap by means of cementation, and uses the natural teeth for support and transfer of chewing pressure, which increases the burden on the natural teeth and affects their service life. 4, small and comfortable: small size, no abutment and ring structure, no foreign body feeling in the mouth, conducive to maintaining oral hygiene, feel comfortable, make you forget the existence of dentures. 5, broader indications: In the case of no teeth in the whole mouth or all the posterior part of the grinding area is missing, only movable dentures can be installed in the past, but movable dentures are not satisfactory in all aspects such as aesthetics, comfort, chewing function and self-cleaning ability, etc., and the implantation of artificial tooth roots can make these patients get fixed denture repair. 6.It helps to prevent the resorption of alveolar bone.