Agustin de la Isla

... Agustin de la Isla · Witold Brostow · Bernard Bujard · Miriam Estevez · J. Rogelio Rodriguez · Susana Vargas · Victor M. Castaæo ... Wiley, New York; Robert E. Krieger (1985), Malabar, FL; Brostow W (1985) Introducción a la ciencia de los materiales, Limusa, Mexico, DF; Brostow ...

A novel hybrid ceramic-polymer coating was developed to protect teeth enamel against both the acidic attack of the metabolic products of microbes and the stains produced by external agents. This material must also have a good abrasion resistance if it is to be used effectively as a dental coating. Accordingly, intensive abrasion experiments on teeth coated with this composite were

A novel hybrid ceramic-polymer coating was developed to protect teeth enamel against both the acidic attack of the metabolic products of microbes and the stains produced by external agents. This material must also have a good abrasion resistance if it is to be used effectively as a dental coating. Accordingly, intensive abrasion experiments on teeth coated with this composite were

The thermoluminescence (TL) response of samples obtained from human teeth exposed to beta irradiation shows that the characteristic glow curves exhibit TL emission at high enough temperatures, which ensures thermal stability of the TL signal, and the TL increases as the dose increases from 0.25 up to 128 Gy, with linear behavior for doses below 32 Gy. The dose interval tested is of interest for clinical applications. Samples do not suffer damage due to heating if the TL readouts are performed from room temperature up to 300 °C. W This indicate that human teeth are promising phosphor materials for use in different TL and afterglow dosimetry applications.

Bones, particularly long ones, are among the most fascinating and intriguing materials, not only because of the complicated structure, but also because of their mechanical behavior, which is still not completely understood.Finite Element computer simulations of the modal behaviour of human femur were compared to experimental results of the resonance frequencies of actual bones, indicating that the details of the boundary conditions and the cross section are key if a better understanding of the mechanical properties of bones is to be achieved. Fractures do not present a defined path, neither when they first appear, nor in their evolution along the cross section, but rather show a totally irregular section. FEM simulations point out the need of taking into account possible changes in cross section and boundary conditions of the epiphysis of femoral human bones. Finite Element computer simulations of the modal behaviour of human femur were compared to experimental results of the resona...