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2 Journal of Medical Informatics & Technologies

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Method of contraction and polymerisation temperature testing for surgical cement

Balin A., Pucka G., Toborek J., Gajda Z.

Journal of Medical Informatics & Technologies

2002

Vol. 4

MT57--61

This work concentrates on the developing a method of the contraction and polymerisation temperature testing for the surgical cement. The linear contraction and maximum polymerisation temperature values have been determined for the pure Palacos R cement and for the same cement with Al2O3 admixture. The investigations were performed into metal mould at initial temperature 19 °C and 37 °C. Basing on the examination results it can be stated that on the contraction and polymerisation temperature the following factors have the influence: - temperature of the mould, - kind of the admixture, - a size of the admixture particles.

Application of scanning microscopy and X-ray microanalysis for description of the admixture surgical cements fracture

Balin A., Sozańska M., Toborek J., Gajda Z.

Journal of Medical Informatics & Technologies

2001

Vol. 2, Part. 2

MT75--MT83

The work presents computer based methods of biomaterial testing. The researches attempt at description of the admixture cement fracture using the methods of the X-ray microanalysis and the electron scanning microscopy. The low cycle fatigue investigations of the surgical cement Palacos R with PMMA base with and without admixtures of fine grained powder Al2O3 and new generation antibiotic (III generation cefalosporin) have been carried out. The elaborated method proved to be suitable for identification of structure elements in surgical cement modified with ceramic and antibiotic particles. The obtained results proved that fracture surface of cement Palacos R with and without admixtures after low cycle fatigue have been mixed – partial brittle and partial ductile. The fracture process have been arrived through separation of the material on the border of the admixture particles and the matrix.