Finite element analysis of a mandibular model
- 1 November 1988
- journal article
- Published by Wiley in Journal of Oral Rehabilitation
- Vol. 15 (6), 615-624
- https://doi.org/10.1111/j.1365-2842.1988.tb00199.x
Abstract
A two-dimensional finite element model of a mandibular quadrant was used to examine the stresses and displacements resulting from a 100 N load placed as follows: (i) distributed on the second molar, (ii) concentrated at 30° to the vertical on the second molar, and (iii) distributed on the second premolar and second molar. Each tooth was supported by periodontal ligaments, cortical and cancellous bone. The modulus and Poisson's ratios for each material were selected from accepted values. The principal stresses were determined throughout the model, with special emphasis being placed for elements in the immediate vicinity of the teeth mentioned above. It was found that for the case where the load was uniformly distributed on the second molar the stresses σmain were mostly compressive (–) in nature while σmax were mostly tensile (+). In the case where the load was concentrated and at 30° to the vertical, the magnitude of the stresses were three to five times greater and the pattern less uniform than those resulting from the distributed load. The concentrated load at 30° to the vertical resulted in higher bending stresses than the distributed load and hence higher σmax stresses.Keywords
This publication has 12 references indexed in Scilit:
- On a formulation of a nonlinear theory of plates and shells with applicationsComputers & Structures, 1986
- Assessment of tooth mobility using small loadsJournal of Clinical Periodontology, 1980
- Dynamic Study of Occlusal Force on Teeth, Periodontal Tissue and Mandible with the Alveolar Bone Resorption or Missing of ToothNihon Hotetsu Shika Gakkai Zasshi, 1979
- Stress Analysis of Occlusal Force by use of the Mandibular FEM ModelNihon Hotetsu Shika Gakkai Zasshi, 1978
- Photoelastic and finite element stress analysis of a restored axisymmetric first molarJournal of Biomechanics, 1973
- Tooth Mobility: A Review of Clinical Aspects and Research FindingsThe Journal of Periodontology, 1967
- Measurement of the Physiological Mobility of Individual Teeth in an Axial DirectionJournal of Dental Research, 1960
- 10 Years of Tooth‐Mobility MeasurementsThe Journal of Periodontology, 1960
- Tooth Mobility: The Measuring Method. Initial and Secondary Tooth MobilityThe Journal of Periodontology, 1954