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In cases where the loss of a primary tooth is unavoidable and the child is at a development stage it is important to preserve the remaining space by a space-maintainer. To evaluate the response and characteristic behavior of three different space-maintainers (band and loop, Nance appliance, and Trans-palatal arch) subjected to masticatory forces with 3D Finite Element Analysis is a three dimensional digital solid model was prepared with a Solid Edge V20 software. The ANSYS Workbenchsoftware was used in conjunction with Solid Edge V20 to simulate the behavior of the objects (teeth and the devices) under structural loading conditions. The forces and constraints are applied in appropriate magnitude and direction. The Von mises stresses, strains and deformation were derived for all three designs and jaw without device. Range of deformation for band and loop is 0 to 4.6292e-6, for Nance-appliance is 0 to 3.7612e-6 and for trans-palatal arch is 0 to 3.7666e-6. The deformation range for the model without the appliance is 0 to 4.9676e-6. The finite element analysis shows that, the Nance appliance shows the least deformation among all the three selected designs.

dentistry

Evaluation Of The Deformations On The Jaw Bone Due To A Band And Loop, Nance Appliance And Trans-Palatal Arch Space-Maintainers: A Three-Dimensional Finite Element Analysis