Immediate dental root implants from synthetic dense calcium hydroxylapatite.

In this article, root implants implanted directly after extraction of the natural teeth were described. The root implants were made of densely sintered or hot-pressed calcium hydroxylapatite (CHA). The significance of using such implants as a method of preserving the bulk of the alveolar ridge and as possible anchoring sites for a post and core for fixed partial dentures was discussed.