ResumoObjectivo: Determinar a prevalência de recém-nascidos internados na Unidade de Neonatologia por suspeita de osteomielite aguda hematogénea/artrite séptica e comparar as características clínicas, radiológicas, microbiológicas, bem como a evolução e a terapêutica instituída. Doentes e Métodos: Revisão da casuística de recém-nascidos admitidos na Unidade de Neonatologia de I Agosto i993 a 31 Julho 2003, por ...
2009
The complexity of the contact in the mouth leads to an interplay of sliding wear, abrasion and fatigue, independently of the surfaces in contact, which involve either tooth-to-tooth or tooth-to-restoration. Since this is a complex problem and in vivo tests are expensive, much time consuming and the generalization of the attained results very complex, in vitro simulations are the usual research approach. ; ht...
Introdução: Nos países industrializados cerca de 1% da população requer anualmente tratamento médico por queimadura e 5% destes obrigam a internamento hospitalar. Objectivo: Caracterizar o perfil nosodemográfico do grande queimado pediátrico internado na Unidade de Cuidados Intensivos Pediátricos (UCIP) do Hospital de Dona Estefânia (HDE). População e Métodos: Efectuou-se estudo retrospectivo através da consult...
Resin composites were first introduced as anterior restorative materials, but are more and more used in posterior teeth, as amalgam replacements. Nowadays the so-called [`]condensable' composites are frequently used in posterior teeth. These materials are subjected to high values of contact and mastigatory loads, loading rates and sliding distances. In such contact conditions, wear is the major failure mode of ...
Composite materials, mainly fibre type ones, are used to respond to crucial demands in engineering applications. Various limitations mean that it is usually impossible to produce structures without mechanical joints. Fretting is an important failure mode for such joints, especially for dynamic loads. This paper sets out to assess the influence of this failure mode--fretting--in association with the effect of di...
Two-body abrasion occurs in the mouth whenever there is tooth-to-tooth contact. This is what most dentists call attrition. Abrasive wear may also occur when there is an abrasive slurry interposed between two surfaces, such that the two solid surfaces are not actually in contact, this is called three-body abrasion, with food acting as the abrasive agent, and occurs in the mouth during mastication. Abrasion is th...
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