[Preserving alveolar bone with submucosal hydroxyapatite].

In this article the use of hydroxyapatite granules to prevent alveolar bone loss after extraction of teeth is described. Twenty-six alveoli were treated in the mandible and the maxilla. The used method resulted in a delayed healing of the wound and loss of a part of the implants. On the account of the results it is recommended to close the extraction wound completely when using hydroxyapatite granules and to limit the indication to the mandible.