Effects of soft tissue augmentation procedures on peri-implant health or disease: A systematic review and meta-analysis.
Thoma, D. S., Naenni, N., Figuero, E., Hämmerle, C. H. F., Schwarz, F., Jung, R. E., & Sanz-Sánchez, I. (2018). Effects of soft tissue augmentation procedures on peri-implant health or disease: A systematic review and meta-analysis. Clinical oral implants research, 29 Suppl 15, 32–49. https://doi.org/10.1111/clr.13114