Influence of sagittal root positions on the stress distribution around custom-made root-analogue implants: a three-dimensional finite element analysis

Abstract Background Stress concentration may cause bone resorption even lead to the failure of implantation. This study was designed investigate whether a certain sagittal root position could stress around maxillary anterior custom-made root-analogue implants via three-dimensional finite element analysis. Methods The von Mises stresses in different groups were compared by Six models constructed and divided into two through Geomagic Studio 2012 software. smooth group included unthreaded Class I, II or III positions. threaded reverse buttress-threaded three distributions range under vertical oblique loads 100 N analyzed ANSYS 16.0 Results concentrations labial lamella area more prominent I than positions loading. Under loading, most obvious areas palatal apical positions, respectively. relatively distributed lamellae position. maximum this lower traditional reported literature. all less 25 MPa cortical 6 cancellous bone. Additionally, group, showed implants. Conclusions affected distribution There no that excessive Among would be appropriate site for