Optimum Design And Three-dimensional Finite Element Analysis Of The Thread Teight And Pitch Of The Upper Anterior Implant

ObjectiveUsing the Ansys Workbench 13.0 software to optimize the design module of the Luofeng in height and pitch of the cortical bone and cancellous bone, provide a theoretical basis to select the best Luofeng high and pitch.MethodsEstablishment of three-dimensional finite element model of the V-shape cylindrical screw implant of maxillary bone.Set the thread tooth height (H) ra nge from 0.20~0.65mm, two-thread pitchs (P) range from 0.50~1.40mm. simulate the bite in the center of the buccolingual,restoration of load with 100N.Observed the changes in H and P jaw Equivalent (EQV) the impact of peak stress.ResultsUnder the influence of single factor, P is variable, The load in the cortical and cancellous bone of the EQV stress peak growth rate was 2.58% and28.9% In the buccolingual.H for the variable In the buccolingual load in cortical and cancellousbone growth rate was 15.7% and 35.0%, in buccolingual load cases, when the variable P is located between 0.8-1.2mm, and the variable H in 0.35 ~0.50mm, the EQV stress on the jaw of the tangent curve of the peak respons e at a -1~1.The peak of EQV stress in variable P on the jaw than the H is more evident. ConclusionsFrom the mechanical analysis, the stress of cancellous bone are more vulnerable to thread size and the pitch,biomechanical considerations, the best thread pitch should be between 0.8 ~ 1.2mm ,And the Luo Feng high should be 0.35 ~ 0.50mm. This study only from the perspective of peak height and pitch to study the size of jaw stress, not consider other forms of change brought about by jaw stress, for example, the thread angle and pitch. thread angle, the form of Luo Feng are also key factors,Needs further study.