Effect of two different parts of CGF on post-extractive alveolar ridge preservation: a preliminary histomorphometric analysis in a Split-Mouth design.

Tooth extraction produces alveolar bone resorption and soft tissue remodelling, so identification of adequate technique for alveolar ridge preservation after tooth extraction is fundamental for all specific cases. Among the several biomaterials, CGF can represent an ideal alternative considering its and its mechanical and biological properties. In this preliminary study we compared the effectiveness of the use of two different parts of CGF (WP-White Part and BC-Buffy Coat) versus natural healing (CTR) by a split-mouth randomized clinical design. Four healthy patients who needed extraction of three teeth were selected. Post-extractive alveolar sockets were filled randomly with CGF-WP, CGF-BC or nothing for CTR. After 60 days, before implant placement, a biopsy for each alveola was obtained for quantitative histomorphometric analysis. The data obtained showed that the use of CGF-WP could achieve good regenerative results, supporting the use of this part for the preservation of the post-extractive alveolar socket.