Volume-Stable Collagen Matrix With or Without Platelet-Rich Fibrin Impregnation for Multiple Gingival Recessions: A Randomized Clinical Trial.
Magrin GL; Michels R; Gil ACK; Maier KB; Mueller B; Gruber R; Benfatti CAM · 2026 · Journal of periodontal research
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract (excerpt)
Aim This split-mouth randomized clinical trial aimed to assess whether incorporating platelet-rich fibrin (PRF) into a volume-stable collagen matrix results in superior reduction of recession depth after 6 months of healing in the…
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Metadata source: Europe PMC · DOI 10.1111/jre.70127