Physico-chemical and mechanical analysis of dental biomaterial 'cement orthophosphate zinc'

摘要

Causes mechanical, thermal, chemical, electrochemical related to the oral environment are effects ranging from simple weathering of biomaterial to the final break, through irreversible deformation, the more invisible and insidious. Study closer to all of these requirements and how to reconcile them is the goal of our work involves the development and analysis of the cements commonly used by dentists and especially cement oxy-zinc phosphate. The powder of zinc phosphate cement is typically made of zinc oxide annealing, alone or mixed with other oxides. The choice and dosage of these oxides must reflect the requirements presented to the concrete (resistance to crushing, shear, acidity, toxicity, solubility, etc ...). Thus the formulation of the composition cement needs to have an optimal mix of different components to achieve desired quality cement. Therefore, we limited the number of formulas or mixtures confined to the study of a unique blend of high purity raw materials which we have subjected three regimes of firing at a fixed temperature of 1350 ° C. The test results show that the cement produced is of very good quality and meets the required standards.