The effect of the injectable platelet-rich fibrin on peri-implant soft tissue phenotype: a preliminary, prospective, 12-month follow-up clinical study.

Clin Oral Investig · 2026 · PMC13035527 · PMID 41910803

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did not reach statistical significanceno p-value reported

In contrast, two studies documented reductions in PI and GI during a 3-month follow-up period that did not reach statistical significance [ 20 , 21 ].

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