Abstract
Objectives: The combination of #platelet-richplasma (PRP) with
#anorganicbovinebone (ABB) has prospective values for the alveolar
bone
ridge preservation. The aim of this study was to evaluate the influence
of PRP combined with ABB to improve the alveolar #sockethealing.
Materials and Methods: Ten post-extractions alveolar sockets
were filled with ABB particles mixed with PRP gel and covered with a PRP
clot membrane. After 4 months of healing, biopsies were collected from
the implant beds sites for #histomorphometricanalysis. Newly formed
bone (NFB), marrow spaces (MS), residual graft (RG) bone regenerative
index (Br) and structural density index (Ds) were measured and
compared to those published in #dental literature selected by PICOT
method.
Results: In the present study, NFB was 26.5%, MS was 45.6% and
RG was 24.5% while, using ABB plus #salinesolution and collagen
membrane Vance et al. reported 26% of NFB, 54% of MS and 16% of RG. The
difference was not significant (p> .05). Conversely, the Br indexes
were 2.12 ±0.1(our study), 1.89±0.10 (by Vance) while the Ds indexes
were 2.7±0.11 (our study), 2.3±0.12 (by Vance). The differences were
significant (P=<.001).
Conclusion: The ABB-PRP was useful in alveolar socket preservation, demonstrating a significant increase of bone regenerative index and
structural bone density.
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