Other Research Systematic review ✓ Peer reviewed

Injectable platelet-rich fibrin based interventions for treatment of gingival black triangles: systematic review of clinical evidence.

Journal of the Korean Association of Oral and Maxillofacial Surgeons · Gangolu M, Vintha J, Boyapati R, Kolaparthy LK, Dhulipalla R, Katuri KK · 2026-08-31

Researchers reviewed 14 studies on injectable platelet-rich fibrin for treating gingival black triangles, finding improvements in papillary height and black triangle dimensions that were comparable to hyaluronic acid and connective tissue grafts, though larger long-term trials are needed.

A plain-English summary of the study's own findings — we don't add our own claims or interpretation. Read the full paper for the complete methods and results, and apply your own clinical judgement.

Read the full study at the source
The Recall — the month's most significant new dental research, summarised. Free.
Browse The Recall