The benefits of dental implants include not destroying the anatomical form of the tooth, and not causing rapid atrophy, while the disadvantages include causing obvious swelling and pain, and affecting the aesthetics, as follows: 1. Benefits: Dental implants are implanted in the alveolar bone of the missing tooth, and the crown is made to connect with the implant, without grinding the tooth tissue, and not destroying the anatomical form of the tooth, thus effectively avoiding tooth sensitivity and soreness. 2. The alveolar bone will not shrink rapidly under the stimulation of chewing, which can play the role of preserving bone volume. 2. Bad: In the implant surgery, some soft tissues will be removed and bone will be ground away, which can cause obvious swelling and pain. The black triangle can be formed between the implant and the adjacent teeth, which affects the aesthetics. At the same time, the retained food residue is not easy to remove, and it is very easy to occur peri-implant tissue inflammation, which leads to the loosening of the implant.