Comparative study of the setting reaction kinetic of several apatitic calcium phosphate bone cements

摘要

A comparative study between three alpha -TCP based bone cements has been performed. The study has been focused on the reactivity of the cements in order to know the effect of several processing factors on their kinetic behaviour. The hardening curves and the extent of conversion of alpha -TCP into a calcium deficient apatite precipitate have been obtained as a function of the hardening time. The factors studied have been the particle size of the alpha -TCP main reactive phase and the addition of calcium carbonate as a modifying setting additive.