“…3,4 However, it has been shown that these 2 ceramics exhibit different resorption patterns characterized by different dissolution properties and degrees of induction of phagocytosis based on mono-and multinucleated cells. 5,6 Furthermore, it has been demonstrated that bone substitute materials based on HA can persist for many years within their implantation beds, while those based on b-TCP are subjected to rapid degradation. 5,7 Both resorption patterns do not result in an optimal standing time in keeping with the theory of guided bone regeneration (GBR) that calls for a balanced resorption pattern parallel to the ingrowth of bone tissue.…”