Teeth are an important organ for human beings to chew and maintain aesthetics, however, after the permanent teeth, a third set of teeth no longer grows. The loss of permanent teeth means the use of dentures. Nowadays, mankind has successfully developed artificial dental implants using bionic principles and methods, and the restoration of missing permanent teeth through dental implant technology is so realistic and beautiful that the patient feels comfortable. Unlike traditional dentures, artificial dental implants require the placement of an artificial root in the dental cavity. The artificial roots are placed in the toothbed of the missing tooth, and then a realistic porcelain tooth is attached to the roots after the roots have grown firmly into the toothbed. Artificial dental implants have many advantages over traditional dentures: 1, its chewing function is much better than many traditional dentures; 2, with strong retention and stability, can be rooted in the patient’s mouth like real teeth; 3, can be less or no grinding of their real teeth; 4, do not need the necessary abutments and rings for removable dentures, no large plastic abutments lead to dull taste and discomfort; 5. Small size, no metal exposure, aesthetic, and conducive to maintaining oral cleanliness and hygiene. After more than a decade of development, this procedure has become more mature, with a success rate of 95% or more. The newly implanted teeth are made of titanium implants, which do not have adverse effects on the human body. Some of these implants have remained in place for more than 30 years after they have been placed. Indications and contraindications of dental implant restoration Indications of dental implant: 1. Patients without teeth, due to alveolar bone resorption, trauma, surgery and other reasons, the alveolar bone has a large morphological change, poor retention of the restoration. 2, poor coordination of oral muscles, affecting with the denture. 3, poor tolerance of oral mucosa tissue, can not adapt to removable denture. 4.Abnormal oral habits, which cause pain and instability of the removable denture. 5.The restorative teeth have high requirements and the conventional denture cannot meet them. 6.Allergic pharyngeal reflexes, vomiting, etc. can not be restored with conventional dentures. 7.Persons who feel inconvenienced in pronunciation with the denture or who cannot wear the denture for occupational needs. 8.Persons who cannot adapt to mental factors. 9.The number of abutment teeth, bad position, and missing teeth with implants. 10.The individual teeth or adjacent teeth are not easy to do abutment teeth. 11.The one or two side free end is missing. and most missing teeth. Contraindications of dental implants: 1, systemic diseases such as diabetes, endocrine disorders, blood diseases, bone diseases, etc. 2. Patients with acute inflammation of the oral cavity, buried teeth, cysts, restricted opening, abnormal grinding of the bite, etc. To get a satisfactory dental implant treatment, you need to pay attention to the following aspects: 1. Choose the right medical institution and specialist: choose those regular medical institutions with strong technical force and advanced implant equipment; the doctor should have formal study and training, and have rich experience in dental implant. 2. 2. Understand the knowledge and precautions about dental implants: communicate well with the doctor beforehand to know what kind of effect can be obtained and what problems need to be paid attention to when dental implants are used in your specific case of tooth loss, and cooperate well with the doctor. 3. Check the legality of the dental implant product: Ask the doctor if the dental implant you are using is licensed by the national legal authorities. In China, in addition to the production license from the State Administration of Medicine, the regular dental implant products must also be technically reviewed and approved for clinical use by the Ministry of Health. Dental implant process: 1st visit: oral examination; panoramic X-ray (or CT scan if computer-guided technology is chosen); implant plan. Visit 2: Implantation of the artificial root; installation of the bridge, completed at the same time. Advantages compared with conventional hemimouth dental implants 1. Implant process: Conventional hemimouth dental implants require 6 to 10 artificial roots, which makes the implant process relatively complicated. The All-on-4 semi-dental implant requires only 4 artificial roots, which makes the implantation process very simple and allows you to eat on the same day. 2.Bone requirement: Long-term wearing of removable dentures will cause alveolar bone atrophy, and serious cases must go through bone grafting surgery before conventional implant technology can be used. all-on-4 allows most patients with alveolar bone atrophy to be implanted without bone grafting. 3.Price budget: All-on-4 hemi dental implant only requires 4 artificial roots, so the implant cost is naturally much less than conventional hemi dental implant. Advantages of half mouth dental implant bridge vs. removable denture The shape of half mouth dental implant bridge is exactly the same as real teeth, which is completely different from the thick and fat brackets of removable denture. At the same time, the chewing efficiency of a half mouth bridge is greatly improved and is no different from that of real teeth.