PMID- 36624073 OWN - NLM STAT- MEDLINE DCOM- 20230331 LR - 20230331 IS - 1881-1361 (Electronic) IS - 0287-4547 (Linking) VI - 42 IP - 2 DP - 2023 Mar 30 TI - Platelet-rich fibrin combined with new bone graft material for mandibular defect repair: A in vivo study on rabbits. PG - 241-247 LID - 10.4012/dmj.2022-076 [doi] AB - Insufficient bone mass is still a difficult point to be solved in oral implantation, so new bone graft materials are continuously researched and discussed in clinical practice in order to obtain better bone augmentation. In order to explore whether platelet-rich fibrin (PRF) can promote the formation of new bone in mineralized collagen (MC), MC/PRF and pure MC were implanted into the bilateral mandibular defect model in rabbits, respectively. Micro-CT scan and histological evaluation of the target area at 4, 8, and 12 weeks after operation. The results of Micro-CT three-dimensional reconstruction analysis showed that the ratio of bone volume to total volume (BV/TV), trabecular bone number (Tb.N), trabecular bone thickness (Tb.Th) and trabecular bone separation (Tb.Sp) and residual material volume fraction (RMVF) in the MC/PRF group were better than those in the MC group (p<0.05). The results of HE and Masson staining showed that the new bone formation and material degradation rate of the MC/PRF group were better than those of the MC group. The results suggest that PRF can accelerate the formation of new bone in MC, and provide new ideas for the clinical application of new bone graft materials. FAU - Zhang, Yue AU - Zhang Y AD - Department of Stomatology, The General Hospital of the Northern Theater Command of the Chinese People's Liberation Army. FAU - Cao, Can AU - Cao C AD - Department of Stomatology, The General Hospital of the Northern Theater Command of the Chinese People's Liberation Army. FAU - Li, Jun AU - Li J AD - Department of Stomatology, The General Hospital of the Northern Theater Command of the Chinese People's Liberation Army. FAU - Liu, Chi AU - Liu C AD - Department of Stomatology, The General Hospital of the Northern Theater Command of the Chinese People's Liberation Army. FAU - Mi, Ketong AU - Mi K AD - Department of Stomatology, The General Hospital of the Northern Theater Command of the Chinese People's Liberation Army. FAU - Zhang, Xiaodong AU - Zhang X AD - Department of Stomatology, The General Hospital of the Northern Theater Command of the Chinese People's Liberation Army. LA - eng PT - Journal Article DEP - 20230107 PL - Japan TA - Dent Mater J JT - Dental materials journal JID - 8309299 RN - 9007-34-5 (Collagen) MH - Animals MH - Rabbits MH - *Platelet-Rich Fibrin MH - Bone Density MH - Collagen MH - X-Ray Microtomography MH - Bone Regeneration OTO - NOTNLM OT - Bone augmentation OT - Bone graft substitute material OT - Mineralized collagen OT - Platelet-rich fibrin EDAT- 2023/01/10 06:00 MHDA- 2023/03/31 06:42 CRDT- 2023/01/09 22:53 PHST- 2023/03/31 06:42 [medline] PHST- 2023/01/10 06:00 [pubmed] PHST- 2023/01/09 22:53 [entrez] AID - 10.4012/dmj.2022-076 [doi] PST - ppublish SO - Dent Mater J. 2023 Mar 30;42(2):241-247. doi: 10.4012/dmj.2022-076. Epub 2023 Jan 7.