Fracture of the central screw of a dental implant may be caused by poor design of the superstructure or the presence of bad occlusal loads, etc. The treatment is to replace the screw and to avoid the negative influences, as described below. A fractured dental implant superstructure screw should be replaced and the cause identified for prevention. If the fracture is caused by poor design of the superstructure, the length of the cantilever beam and the bracket can be shortened; if there are occlusal loads such as occlusal high points and excessive lateral forces that lead to the fracture of the screws, the height of the tip of the tooth can be reduced, the inclination of the tooth can be reduced in order to reduce lateral forces, and the diameter can be reduced in order to minimize the combined forces and to prevent the screw from fracturing again. There may be other reasons for the fracture of the central screw of the dental implant, it is recommended to go to the hospital in time for early targeted treatment.