Objective To create 3-D models of immediately loaded screw-type dental implants for finite element analysis by computer.Methods Using the commercial code of SolidWorks,3-D models of screw-type dental implants and a segment of mandibular bone were generated.By ABAQUS software,the 3-D implant-bone complex was meshed.The interfacial contact of bone and the implants was defined to be a frictional contact with the initial press-fit stress(by Interference Fit Option) to simulate the contact of immediately loaded implants and bone tissue.Results The finite element models of the immediately loaded screw-type implant were successfully created on the computer.As the interference fit got deeper,the interfacial initial press-fit stress got higher values.Conclusion The finite element models of the immediately loaded screw-type implants can be built with this method.The interfacial status of the primary press-fit stress can be simulated by the Interference Fit Options in the finite element software.