1. What is dental implant: Dental implant is now one of the best restoration techniques for missing teeth, and the main material is composed of two parts: implant and crown. The implant is implanted in the alveolar bone to act as a root, increasing the fixedness of the denture, which can better restore the oral chewing force. The implant effect is different when you choose different implant systems. The stability of dental implants: Dental implants are not like ordinary movable dentures that may fall off when eating or talking, causing the danger of blocking the trachea or esophagus. 2. Safety of dental implants: The artificial root is deeply planted in the alveolar bone, which has functional stimulation to the alveolar bone and can protect the alveolar bone structure from shrinking. 3. Complete retention of healthy teeth: Healthy teeth can be completely retained without the need to grind down the adjacent healthy teeth. 4. Stable artificial tooth root: The implant denture is fixed to the upper denture by the retention device on the abutment, which has a good retention and stabilization effect to increase the comfort and good chewing power. 5. Dental implants have a longer life span: artificial implants can have a longer life span. In addition, the appearance is beautiful, just like the natural teeth, facial expressions when talking is as natural as the original, increasing your self-confidence. 3. Disadvantages of dental implants: The price of dental implants is expensive. Dental implants are not suitable for all people. Adults who are in good general condition, physically and mentally healthy, and whose bones and teeth have been developed are suitable for dental implants, such as those with bleeding disorders, hypertension, heart disease, diabetes and other systemic diseases, can only receive dental implants after the treatment of the disease has been stabilized.