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Figure 2. Displacements indicated by arrows on the surface nodes of the incisor viewed mesially, with the resultant stress contour graphics of the PDL under the simulated bite forces of 1 N and 20 N. Each color of arrow represents the displacement path of each node. Lines hidden inside the tooth surface are not displayed. The color of each line represents the magnitude of displacement: The red lines indicate the greatest displacement, while the blue lines indicate the smallest displacement. Each contour graphic (upper right of each arrow graphic) indicates the 1st principal (tensile) stress distribution on the inner surface of the sectioned half of the PDL. The maximum tensile stress is found at the lingual cervical region in the PDL under 20 N of bite force. The scales indicate the maximum and minimum values, as well as the boundary values between each level for the displacement or the stress. The upper left illustration represents the direction of the simulated bite force.
J DENT RES, Vol. 85, No. 12,
1087-1091 (2006)
DOI: 10.1177/154405910608501204
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