Abstract
Background/AimsCoating dental implants with hydroxyapatite (HA) layer has been widely used in last decades due to its numerous advantages. Stress concentration in the implant is an essential factor as it can cause the fracture of the implant. MethodsWe compared the effect of different thicknesses of hydroxyapatite layer on stress concentration in a nano-Titanium dental implant with finite element method (FEM) software under 200 N axial chewing load applied on the top of the implant in order to see which one has the lowest stress concentration and is best for dental applications. Results and conclusionThe results show that the best thickness of the hydroxyapatite layer is 180 μm which minimizes the stress concentration in bone and maximizes the life of the implant.
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