Introduction Dental implants, which are implants (artificial tooth roots) placed in the alveolar bone of the missing tooth area, replace the lost natural tooth roots and form a good and stable bond with the alveolar bone; about 3 months after the implant surgery, artificial crowns are restored on the basis of the implants, which are known as the third set of human teeth. There are many methods to restore missing teeth/alignments, but the ideal method is dental implant restoration. Advantages of dental implants: 1. Similar in appearance to natural teeth, very beautiful. 2. Similar comfort to natural teeth, close integration with alveolar bone and gums, no need to remove. 3. The bite function of natural teeth is restored. The bite force of general dentures is only 1/20 of that of natural teeth, while the bite force of dental implants is close to that of natural teeth and can chew harder food. 4. Protect the neighboring teeth. Porcelain bridge restoration needs to grind away the crowns of neighboring teeth and damage them, while dental implants are only implanted in the missing tooth area and will not damage the neighboring teeth. 5. Get rid of the inconvenience of movable dentures. Dental implants can get rid of the inconvenience caused by movable dentures such as gum pain, foreign body feeling, odor, and pronunciation. 6. Increase the retention force of full dentures. Dental implants can better fix the full denture and make it more solid. 7.Maintain healthy alveolar bone. Long-term use of traditional dentures can cause atrophy of the alveolar bone. The implant in the missing tooth area can increase the bone density of the alveolar bone and reduce the bone resorption. 8.The chance of dental caries in implant is 0%. 9, compared with traditional dentures, dental implants are easier for you to feel the delicious and delicate food, thus improving your taste of life. 10, cheaper: dental implants are semi-permanent restorations, which normally last 20-30 years, or more. A normal porcelain bridge to repair a missing tooth will need to be replaced in 5-10 years. So dental implants are more durable and cost effective. 11. It is not worth advocating to sacrifice healthy teeth for the sake of missing teeth. Porcelain teeth last about 5-10 years, and at the expense of your good teeth. In the long run, dental implants are the most ideal and cost effective option. Indications and contraindications of dental implants Indications: With the application of various oral implant bone grafting techniques and bone grafting materials, the continuous improvement of the implant system, the development of imaging and digital technology, patients with single tooth loss, multiple tooth loss and edentulous jaws can theoretically receive implant restoration treatment. As long as they are in good health, dental implants are also available for elderly people over 80 years old. Contraindications: 1, poor general health, severe endocrine metabolic disorders, such as uncontrolled diabetes. 2. Hematologic diseases, such as erythrocytic or leukocytic hematologic disorders, coagulation disorders, etc. 3, cardiovascular system diseases that cannot tolerate surgery. 4, Long-term use of special drugs affecting coagulation or tissue healing ability. 5.Serious systemic immune diseases. 6.Patients with excessive addiction to tobacco and alcohol, neurological and psychiatric disorders. 7.Patients during pregnancy. 8.Patients who are restricted by local conditions of the oral and maxillofacial area. The dental implant procedure is generally divided into four parts: 1. Pre-operative examination, treatment planning, necessary gum (peri-) treatment, such as oral panoramic X-ray and CT if necessary. 2. Implant placement surgery: implant is placed in the alveolar bone. Implant placement surgery is a very usual outpatient procedure and is generally less invasive. Surgery time: about 20 minutes for one dental implant. 3. About 3 months after the dental implant surgery, the healing abutment is placed, the model is taken after 2 weeks, and the permanent artificial crown can be worn in about 10 days. 4. Maintenance of dental implants and regular follow-up: once every 6 months, check the tissues around the implants, gums and neighboring teeth, and do maintenance of dental implants. Precautions after implant surgery: 1. Please avoid excessive exercise, fatigue, sauna and bathing within three days after surgery. 2. Please rinse your mouth with mouthwash for 3 days after surgery, 3-4 times a day for 3 minutes each time. Pay attention to oral hygiene, and be careful when shining teeth in the surgical area to avoid damaging the wound. 3.Prohibit smoking and alcohol for 2-3 weeks after surgery, and avoid overheated food. 4.Do not chew food with the teeth in the surgical area for 4 weeks. 5.Take oral antibiotics for 3-5 days after surgery. 6. If there is obvious pain, bleeding and increased swelling in the surgical area 2-3 days after surgery, it is recommended to contact your doctor directly immediately to clarify the cause and treat it promptly. Dental implant trends: 1. Immediate implantation, immediate restoration and minimally invasive implantation are the trends of dental implants. Among them, minimally invasive implant technology is less invasive, basically painless and effective. 2, remote consultation will also become an important part of the future dental implant technology: the local hospital will take an oral panoramic X-rays, or CBCT, photos of the missing teeth (the best way to see the upper and lower parts of the teeth, open-mouth position photos, closed-mouth position photos) and other examinations online upload, implant experts remote consultation, basically can develop an implant plan. In this way, the time and number of visits of patients can be significantly reduced, saving time and money.