Gum injections fill black triangles: which works better?
Disease control
Completed
This study tested two injections—hyaluronic acid and platelet-rich fibrin—to rebuild the small triangle of gum between teeth (called the interdental papilla) that is often lost, creating a dark gap. 13 healthy adults with multiple missing gum triangles received both treatments in…
Phase: PHASE4 • Sponsor: Altinbas University • Aim: Disease control
Last updated May 26, 2026 11:37 UTC