A multicenter randomized controlled trial using a novel collagen membrane for guided bone regeneration at dehisced single implant sites: Outcome at prosthetic delivery and at 1-year follow-up

1. Urban, I.A.
2. Wessing, B.
3. Alández, N.
4. Meloni, S.
5. González-Martin, O.
6. Polizzi, G.
7. Sanz-Sanchez, I.
8. Montero, E.
9. Zechner, W.