Application of the finite-element method as an aid in dental appliance design Online publication date: Sat, 06-Nov-2010
by A.A. Gadalla, A.-N. Ahmed
International Journal of Materials and Product Technology (IJMPT), Vol. 4, No. 4, 1989
Abstract: The objective of this study is to apply the finite-element technique to study abutment movements and stress distributions in the case of mandibular free-end situations. The effect of the following factors were studied: (1) sagittal residual ridge angulations '0, 5 or l0°', (2) occlusal rest positions 'either distal or mesial' and (3) load positions 'either anterior or posterior'. The model was idealized as a system of quadrilateral elements of different thicknesses. A two-dimensional finite-element program, based on the displacement approach, was developed to evaluate the elastic behaviour of the model. It was shown that (1) the direction of abutment movement was mainly influenced by occlusal rest position. Load position and ridge angulation did not alter the results significantly. (2) The magnitude of abutment movement was influenced by ridge angulation, rest and load positions. (3) The stress distribution was influenced by ridge angulation, rest and load positions. The intensity of stresses along the residual ridges was inversely proportional to the angle of the ridge.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Materials and Product Technology (IJMPT):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com