Effect of reactive soft tissue combined with injectable platelet-rich fibrin for alveolar ridge preservation in severe defect molar sites: a retrospective cohort study Zihan Li Yuanyuan Wang Yuanding Huang Aug 2026 · Clinical Oral Investigations · Vol 30 · 0 citations · 39 references Medicine DOI PubMed Semantic Scholar Save View source Cite Copy APA Copied ✓ Copy MLA Copied ✓ Copy BibTeX Copied ✓ Share