Abstract
The paper presents an analysis of a unilateral cast partial denture supported by the gum soft tissue with the use of the Finite Element Method (FEM) [1, 2]. In the previous considerations in the papers [3, 4], the analysis of the denture is carried out for the case, in which a movable wing is not supported, while in real conditions, the denture is placed on the elastic base of the palate soft tissues. However, the model of the elastic support, proposed in the paper [5, 6], was used only for the analysis of the bilateral cast partial denture. In the following paper, this model was used for the static analysis of the unilateral alar cast partial [7].
Highlights
The cast partial dentures are metal-acrylic dentures
Other nodes rest on the mucous membrane, and they obtain the status of unilateral elastic supports
On the presented model of the denture, a simulation with the use of the programme developed for the static analysis of MICRO-STRAINS surface structures was carried out
Summary
The cast partial dentures are metal-acrylic dentures. The construction basis is a metal base properly formed to the base shape of the patient’s oral cavity. The soft tissues of the prosthetic base, to other soft tissues of other body areas, are characterised by elasticity (flexibility) – involving the fact, that after deformation under the influence of forces (at certain small limits), they return to the original shape after the stop of operation of these forces. It is not a permanent feature because the factors causing the change of or even the loss of elasticity – e.g. swelling or dehydration of tissues, are known. It is stated that the prosthetic base soft tissues tend to lose elasticity over time of remaining without the prosthetic cover [1, 11]
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