[Coral and guided tissue regeneration. Histological aspects].

During the past ten years, biotechnical and scientific advancements in periodontics have improved our knowledge concerning healing (with the concept of guided tissue regeneration) and bone filling (with the new available materials). A combined therapy using both Gore-Tex membranes and Biocoral 450 seemed well indicated for the treatment of an advanced adult periodontitis case. Histological observation of healing tissue biopsy has provided interesting findings concerning coral and cell behavior during the early stages of healing. Besides the slow resorption of the coral, early intrafibrillar calcification processes seem to occur, thus enhancing the regenerative potential.