血小板丰富的纤维素低速离心协议和颗粒牛骨在骨缺陷的修复
Lélio Fernando Ferreira Soares1,2, Thaisa Macedo Iunes Carrera3, Roberta de Oliveira Alves3
1Faculdade de Odontologia da Universidade Federal de Alfenas(UNIFAL/MG), Alfenas, Minas Gerais, Brasil.
Brazilian dental journal
|November 26, 2025
概括
富含血小板纤维素 (PRF) 膜可以促进骨早期愈合. 脱蛋白牛骨矿物质 (DBBM),单独或与i-PRF一起,促进骨再生,但i-PRF对DBBM没有额外的好处.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 口腔和牙面部外科手术
背景情况:
- 富血小板纤维素 (PRF) 和可注射的PRF (i-PRF) 是自身血液缩剂,用于加速愈合.
- 脱蛋白牛骨矿物质 (DBBM) 是一种常见的骨移植材料.
- 将PRF/i-PRF与DBBM结合起来旨在增强骨再生,产生"粘性骨" (SB).
研究的目的:
- 评估PRF和i-PRF制备的低速离心方案.
- 评估PRF膜和i-PRF/DBBM (SB) 在修复老鼠骨缺陷方面的有效性.
- 为了将再生结果与血栓进行比较,单独使用PRF,单独使用DBBM和单独使用SB.
主要方法:
- 64只带有部缺陷的老鼠被分为四组:对照组 (血块),PRF膜,单独的DBBM (BO) 和i-PRF/DBBM (SB).
- 评估包括微计算断层扫描 (μCT),组织学分析和15日和45日的基因表达 (Alpl,Bglap,Runx2).
- 低速离心法用于PRF和i-PRF的制备.
主要成果:
- PRF膜显示出比对照组更大的早期骨形成和BGLAP表达.
- 单独使用DBBM (BO) 和SB组显著增加皮质骨的形成和缺陷边缘的厚度,长达45天.
- 虽然BO和SB增强了骨髓骨的形成和椎骨数,但i-PRF并没有进一步提高DBBM的再生潜力.
结论:
- 与简单的血块相比,PRF膜增强了早期的骨再生.
- 单独使用或与i-PRF一起使用的DBBM有效地促进了老鼠骨缺陷的骨再生.
- 与单独使用DBBM相比,将i-PRF添加到DBBM中并没有产生更好的骨再生结果.
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