Micro-implant assisted intrusion of orthodontic teeth molar:three dimensional finite element ananysis
BIAN Jing
DONG Ni
WANG Liu
Abstract：Objective To analysis the biomechanics of micro-implant assisted intrusion of orthodontic teeth molar by three dimensional finite element.Methods Micro-implant bone tissue three-dimensional model were established by AN-SYS, LOLID-WORKS, Von-Mises stress and displacement between diffeent tiled angle were calculated.Results Under the same planting long axis, with the increase of angle, Von Mises-comprehensive stress increased, and load implant bone interface displacement reduced gradually.Under the same angle, with the increase of planting long axis, Von Mises-com-prehensive stress and load implant bone interface displacement were gradually reduced.The tilt angle 0°, 30°, 45°, 60°, 90°, micro-implant Von Mises stress and displacement distribution in bone implant neck skin area, maximum Von Mises stress peak value were 0.614, 3.120, 4.104, 4.812, 5.162 MPa, the highest peak displacement were 0.701, 0.127, 0.135, 0.141, 0.161 microns.Conclusions Under the 150 g orthodontic force, Von Mises stress and displacement be-tween angle are both small.Based on the different angle loading implants analysis of stress value and displacement, we sug-gest that 60°implants for orthodontic antibodies.
Keywords：teeth transplantation and replantationmicro-implantmolarthree dimensional finite element analysisbiomechanics
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 17-19 )