Evaluation of the efficacy of platelet-rich plasma and platelet-rich fibrin in alveolar defects after removal of impacted bilateral mandibular third molars.

In Group IIa and Group IIb, there was a highly significant difference in bone density of the bone adjacent to the extraction socket and the bone formed in the extraction socket at 2 nd , 4 th , and 6 th months postoperatively when compared with Group I.

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