Smoking is not recommended after dental implantation, which may affect wound healing or lead to peri-implantitis as follows. 1. Impact on wound healing: Smoking will cause sucking action, resulting in negative pressure in the oral cavity, which may lead to wound cracking and infection, affecting wound healing and the osseointegration between the implant and the alveolar bone, and in severe cases, leading to implant failure. 2. Peri-implantitis: Smoking will cause tar to be deposited on the surface of the implant, forming plaque, forming plaque accumulation and stimulating the rough surface of the gums, which can cause or aggravate the inflammation of the surrounding tissues, resulting in peri-implant bone resorption, and in severe cases, the implant will loosen and fall off. If the above symptoms occur, it is recommended to go to the hospital in time.