inimkehas kasutatav, biosobivusega tehnokeraamika; kasutatakse Al2O3- ja ZrO2-baasil biosobivusega tehnokeraamikat (vt tehnokeraamika), advanced ceramic materials used in the human body; the response of these materials varies from nearly inert (Al2O3- and ZrO2- based) to bioactive to resorbable (see: engineering ceramics)