The advantages of immediate extraction and implantation of dental implants are that the bone volume can be effectively preserved, and the disadvantages are that the surrounding soft tissues have to be separated, which may cause the failure of dental implantation, etc. The details are as follows: 1. Advantages: placing an implant into the alveolar fossa immediately after extraction can delay the resorption speed of the alveolar bone, effectively preserve the bone volume, save the patient’s consultation time, and alleviate the patient’s pain at the same time. 2. Disadvantages: when immediate extraction and implantation of dental implants are performed, a large gap may be formed between the alveolar fossa and implant. Large gap between the alveolar socket and implant, need to place bone powder and periosteum to promote bone healing. Moreover, after the implant is placed in the alveolar fossa, the surrounding soft tissues need to be separated and the wound needs to be closed by suturing. During the implant healing process, the orientation may be skewed and there is a possibility that more bone coverage may form in the neck, making phase II restoration difficult. If fracture of the alveolar process occurs during extraction, it may lead to dental implant failure.