evidencegaps
Primary study · included by 1 review

Volumetric soft tissue alterations in the early healing phase after peri‐ implant soft tissue contour augmentation with a porcine collagen matrix versus the autologous connective tissue graft: A controlled clinical trial

Schmitt 2021 · Schmitt Christian M., Brückbauer Patrick, Schlegel Karl A., et al. · Journal of Clinical Periodontology · 2020

Included by

Comparative outcomes of xenogeneic collagen matrices and autogenous graft-based techniques to increase mucosal thickness and keratinised mucosa width at implant sites: are autologous grafts still the gold standard? A systematic review and meta-analysis of randomised clinical trials.
Non-Cochrane · intervention · 2026 · cited as Schmitt 2021 · Results, Study selection; Figures 2-4 and 6; reference list
Outcome this study informsPooled effectEvidenceCertainty
Increase in buccal mucosal thickness (MT), mm
Non-crosslinked xenogeneic collagen matrix (XCM*) with bilaminar technique vs Subepithelial connective tissue graft (CTG) with bilaminar technique · 3 months
MD 0.27 [0.05, 0.49]5 studies · 152 participantsGRADE not reported
Increase in buccal mucosal thickness (MT), mm
Xenogeneic collagen matrices (XCM*, non-crosslinked, and VCMX, crosslinked) with bilaminar technique vs Subepithelial connective tissue graft (CTG) with bilaminar technique · 3 months
MD 0.27 [0.12, 0.42]9 studies · 294 participantsGRADE not reported

1 including review in total.