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Updated: Jul 31, 2026

In situ Compressive Loading and Correlative Noninvasive Imaging of the Bone-periodontal Ligament-tooth Fibrous Joint
Published on: March 7, 2014
The effects of load location and misalignment on shear/peel testing of direct bonded orthodontic brackets--a finite
1Indiana University-Purdue University at Indianapolis, Biomechanics and Biomaterials Research Center.
Abstract:
A finite element model (FEM) of an orthodontic bracket bonded with glass ionomer cement was developed. The loading on the model simulated shear loading conditions associated with the testing of bonding system strength. The primary purpose of this project was to ascertain the effects of shear load placement and misalignment on the calculated stresses within the cement layer. Over the range of values considered, peak stress values depend profoundly on the location of force application. Peak stresses are less affected by shear force angulation.
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