The results of the third national oral epidemiological survey show that more than 200 million adults suffer from tooth loss or missing teeth. How to get the missing teeth repaired well, dentistry experts recommend the latest restoration method: dental implant technology. Many people ask how dental implants work. How can a missing tooth be “implanted”? The following is a detailed explanation of this issue. Dental implants are a new form of dental restoration, which has become the preferred restoration method for more and more patients with missing teeth because it can achieve a restoration effect very similar to the function, structure and aesthetic effect of natural teeth. When people are missing teeth, they expect to restore a denture that can function like real teeth, but the application of traditional fixed denture is more often limited by objective conditions, and removable removable denture is difficult to satisfy patients because it cannot fully restore chewing efficiency, affects pronunciation and has foreign body sensation. In recent decades, implant fixed denture has been widely used in clinical practice and achieved good results, gradually becoming a restorative method that patients and dentists are willing to adopt. The implant fixed denture consists of an implant located in the jawbone and an open part that is pierced and exposed to the gums. The implant is placed in the jawbone using a minimally invasive procedure, just like planting a crop. After 4 to 6 months, the implant is firmly bonded to the jawbone and a porcelain tooth is attached to the upper end of the implant to become a dental implant. When a patient wears a dental implant denture, the dental forces are transmitted directly to the jawbone or the jawbone through the implant, and the forces are quickly transmitted and dispersed to the larger supporting bone, thus being able to withstand the larger dental forces and having a good supporting effect. The implant denture is secured to the upper denture by a retention device on the abutment, which provides good retention and stability. The implant-supported overdenture has a small or no abutment, which makes the patient feel comfortable. The advantages and disadvantages of dental implants: 1. Implant technology is currently the most advanced means of treating and restoring missing teeth. (1) Alveolar bone support, stable retention, and basic restoration of the original natural tooth function; (2) no damage to adjacent teeth, to avoid excessive bite force burden on adjacent teeth; (3) long restoration time, as long as there is good osseointegration, it can be used for a long time; (4) no lasting effect on alveolar bone resorption; (5) cosmetic effect, dental implants for missing front teeth (6) The difficulty of restoring missing teeth at the free end can be solved. (7) It is possible to restore large deformities in the jaw; (2) Dental implants also have shortcomings, mainly the following two: (1) long treatment period, usually three months for maxillary teeth and six months for mandibular teeth; (2) the treatment cost is more expensive than general dental implants. Dental implants are suitable for the following cases: 1. Individual teeth are missing and the implant bed is normal in the area of missing teeth. 2, most of the missing teeth, to be restored with a fixed denture, in order to reduce the burden of the abutment teeth at the ends of the gap between the missing teeth intermediate implant abutment teeth. 3, free end missing teeth, the alveolar ridge in the lost tooth area is severely resorbed and cannot bear the load of the denture abutment. 4, full mouth missing teeth, feasible full mouth covering type or full mouth fixed implant denture restoration. 5, jaw bone loss, can complete the functional reconstruction and morphological recovery through implant restoration. 6, due to physiological or psychological reasons, can not get used to wear removable denture with large abutment, or due to the stimulation of the abutment nausea and vomiting reaction. Third, the contraindications of implant prosthesis 1, local contraindications ① poor occlusal relationship: such as occlusal relationship is not normal, should not do implant restoration. If the occlusal relationship can be corrected, it can be done. (Severe jaw anomalies, such as misalignment, tight bite, night grinding, lateral chewing and other bad habits of patients, due to imbalance of bite or excessive force may cause trauma to the bone tissue around the implant and lead to failure. ②Pathological changes in the alveolar bone: such as residual roots, inflammation, etc. After eliminating the pathological changes, implant restoration can be considered. Those with jaw bone lesions, patients with osteomyelitis, bone cysts, sinusitis. ③Jaws that have undergone radiation therapy. ④Progressive periodontitis, oral infection. ⑤ Patients with restricted mouth opening. Patients with psychological disorders mental tension, unable to cooperate with physicians. Severe alcoholic and smoker. 2. Systemic contraindications Patients with systemic diseases and immune dysfunction, such as heart disease, blood disease, diabetes, kidney disease, bone metabolic disease, mental and neurological disorders who cannot cooperate with the doctor and pregnant women. Generally speaking, with the development of various complex dental implant surgical techniques, any patient with tooth loss or missing teeth can rebuild the bite and jaw function through dental implants. However, the prerequisite for the success of dental implants is a good oral environment with good healing ability and resistance to infection. The above is a detailed introduction to dental implants, I believe it will be helpful for you. If there is anything else you do not understand, please leave me a message and I will give you a satisfactory answer according to your specific situation.