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Results for “Denture, Complete, Lower”

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At least 73 records · Page 4Linked to original sources
PubMed1981

A hollow complete lower denture.

A technique was described that greatly reduces the weight of an exceptionally heavy lower denture by as much as 25%. When weight of a denture may be a contributing factor to the successful resolution of a patient's problem, the hollow denture should be considered.

Denture Design↗
PubMed1977

Mylohyoid ridge reductions as an aid to success in complete lower dentures.

A common problem of the mylohyoid ridge in the resorbed edentulous mandible is discussed. A surgical technique that is simple, though efficient, is described for the elimination of the anomaly in the ambulant patient. A prosthetic technique is suggested for maximum advantage to be gained from the operation.

Alveolar Process↗
PubMed2001

The dynamic behaviour of a lower complete denture during unilateral loads: analysis using the finite element method.

The purpose of this study was to analyse the correlation between the location and/or direction of unilateral load and the dynamic behaviour of a mandibular complete denture using the three-dimensional finite element method (FEM). The FE model consisted of the body of mandible, alveolar mucosa, and a complete denture, and it could simulate the condition of contact between the surface of the mucosa and mucosal surface of a denture. Load vectors, which simulated premature contacts, were calculated on the supposition that a premature contact on an occlusal facet causes a vertical load on it. Load-A, a load vertical to the anterior occlusal facet, caused the least displacement of the denture and less concentrated stress distribution. Load-P, a load vertical to the posterior occlusal facet, was characterized by the stress distributed in the lingual area of the pre-molar lesion on the contra-lateral side of the load. Load-B, a load vertical to the balancing occlusal facet, caused the largest displacement of the denture. The relationship between loads and stress distribution was agreed approximately with the observations previously reported, and lead to some suggestions about occlusion for complete dentures.

Alveolar Process↗
PubMed2001

Relationship between the stress distribution and the shape of the alveolar residual ridge--three-dimensional behaviour of a lower complete denture.

PURPOSE: For a complete denture to function effectively, the denture must be stabilized during mastication. The alveolar ridge has various forms, and we must choose the artificial tooth arrangement that is most suitable to the form of the alveolar ridge. The purpose of this study was twofold: (i) to examine the relationship between the alveolar ridge form and the stress distribution on the mucosa, and (ii) to model the contact condition between the denture base surface and mucosa. MATERIALS AND METHODS: In this study, the three-dimensional finite element method was used for the analysis. Four types of alveolar ridge were prepared. As a loading condition, three load places were prepared: the mesial position, the central position and the distal position. We utilized the 'contact option (MARC)' to simulate the true behaviour of the denture. RESULTS: We were able to model the contact condition by using the 'contact option'. Maximum stresses were distributed on the alveolar ridge in which the absorption is severe. And, the distal load produced large compressive stresses on the inclined plane of posterior alveolar ridge in which alveolar form.

Alveolar Bone Loss↗