Key Study

Stability of Root Coverage Outcomes After Soft-Tissue Augmentation With a Collagen Matrix With or Without rhPDGF-BB: A 3-Year Triple-Blinded, Randomised, Placebo-Controlled Trial

Lorenzo Tavelli, Shayan Barootchi, Maria Vera Rodriguez, Leonardo Mancini, Hamoun Sabri, Tu Nguyen, Jad Majzoub, Suncica Travan, William V. Giannobile

Journal of Clinical Periodontology, 2025; 0:1–12

Disclaimer: These results are not guaranteed; individual outcomes may vary depending on patient circumstances. This information is for informational purposes only and may not reflect Geistlich’s official position, opinion, or recommendation. Treatment decisions are made at the physician’s discretion, based on the unique needs of each patient.

GEM 21S® has not been approved by the FDA for use in this indication, and the safety and effectiveness of GEM 21S® for use in this indication has not been established by the FDA.
Geistlich Fibro-Gide®, GEM 21S®