中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (2): 204-209.doi: 10.3969/j.issn.2095-4344.0007

• 组织工程口腔材料 tissue-engineered oral materials • 上一篇    下一篇

富血小板纤维蛋白复合牙齿煅烧颗粒修复骨缺损

王得利1,徐文秀2,林  娜2,王海艳2,石  屹2,于学刚2,栗巧玲2,周  洋2,栾海蓉1 
  

  1. 1黑龙江省牡丹江医学院,黑龙江省牡丹江市  157011;  2黑龙江省牡丹江红旗医院口腔科,黑龙江省牡丹江市  157011
  • 收稿日期:2017-08-29 出版日期:2018-01-18 发布日期:2018-01-18
  • 通讯作者: 栾海蓉,副教授,牡丹江医学院,黑龙江省牡丹江市 157011
  • 作者简介:王得利,男,1979年生,黑龙江省牡丹江市人,汉族,硕士,副教授,主要从事口腔基础医学研究工作。
  • 基金资助:
    牡丹江市科学技术计划项目(Z2016s0077):PRF结合牙齿煅烧颗粒用于兔骨缺损的实验研究;牡丹江市科学计划项目(G2007d2368);2017年度黑龙江省属高校基本科研业务费项目

Platelet-rich fibrin combined with tooth ash promotes bone repair

Wang De-li1, Xu Wen-xiu2, Lin Na2, Wang Hai-yan2, Shi Yi2, Yu Xue-gang2, Li Qiao-ling2, Zhou Yang2,Luan Hai-rong
  

  1. 1Mudanjiang Medical University, Mudanjiang 157011, Heilongjiang Province, China; 2Department of Stomatology, Hongqi Hospital of Mudanjiang, Mudanjiang 157011, Heilongjiang Province, China
  • Received:2017-08-29 Online:2018-01-18 Published:2018-01-18
  • Contact: Luan Hai-rong, Associate professor, Mudanjiang Medical University, Mudanjiang 157011, Heilongjiang Province, China
  • About author:Wang De-li, Master, Associate professor, Mudanjiang Medical University, Mudanjiang 157011, Heilongjiang Province, China
  • Supported by:
    the Scientific and Technological Plan Project of Mudanjiang City, No. Z2016s0077; the Scientific Plan of Mudanjiang City, No. G2007d2368; the Fundamental Rearch Foundation for Heilongjiang Provincial Universities in 2017

摘要:

文章快速阅读:

 

文题释义:
富血小板纤维蛋白:是一种富含细胞因子和生长因子的自体来源的新型生物材料,被誉为新一代血小板浓缩物,其分子结构类似天然血凝块,为组织细胞提供迁移、增殖和分化的场所。近来,许多学者将富血小板纤维蛋白作为移植材料应用于口腔种植前上颌窦底提升术后的骨移植中,获得了良好效果。
牙齿煅烧颗粒的特性:作为天然矿化物,其成分中富含矿化产物,其中无机成分羟基磷灰石(Hydroxyapatite, HA)在经过高温处理后可获得粉末状的颗粒,该颗粒因其优良的组织相容性,可作为骨性支架为骨组织的生长提供空间支持,但经过高温处理后的羟基磷灰石不具有生物活性,仅具有骨传导性,并且粉末状的羟基磷灰石颗粒流动性强、易变形、缺乏黏附性,材料不易被固定在正确位置。
 
背景:牙齿煅烧颗粒可作为骨性支架为骨组织的生长提供空间支持,而且在骨再生过程中够提供钙和磷等成分;富血小板血浆具有促进软、硬组织再生的作用,两者单独应用均有不足。
目的:探讨富血小板纤维蛋白复合牙齿煅烧颗粒修复颅骨缺损的效果。
方法:取新西兰大白兔9只,在大耳白兔颅骨中缝两侧各制备标准一致的骨缺损,选择左侧植入兔自体富血小板纤维蛋白膜与人牙齿煅烧颗粒混合物,作为实验组;右侧植入兔自体富血小板纤维蛋白膜,作为对照组。植入后4,6,8周分别取颅骨标本,进行软X射线摄片、苏木精-伊红及改良Gomori染色观察。
结果与结论:①软X射线检查:实验组植入后6,8周的骨小梁面积大于对照组(P < 0.05或P < 0.01);②苏木精-伊红染色:随着植入时间的延长,两组骨缺损处新形成骨结构纤维成分逐渐减少,骨结构趋向于有序的层状排列,钙化程度增高,但与对照组比较,实验组新骨成熟度更高,骨小梁排列更规则,成骨细胞也更多;③改良Gomori染色:随着植入时间的延长,两组骨缺损处新生骨逐渐成熟,实验组骨成熟度高于对照组;④结果表明:富血小板纤维蛋白结合牙齿煅烧颗粒具有更明显的促进骨缺损修复作用。

关键词: 生物材料, 口腔材料, 富血小板纤维蛋白, 牙齿煅烧颗粒, 骨再生, 骨缺损

Abstract:

BACKGROUND: The tooth ash can be used as a scaffold for bone tissue growth and provide calcium and phosphorus components during bone regeneration. Platelet-rich plasma can promote the soft and hard tissue regeneration. However, either of them has its shortcomings.
OBJECTIVE: To investigate the effect of platelet-rich plasma combined with tooth ash in repairing skull bone defects.
METHODS: Nine healthy rabbits were selected to make bone defects on both sides of the skull. Rabbit platelet-rich plasma combined with tooth ash was implanted into the skull defect on the left side as experimental group, while rabbit platelet-rich plasma was implanted into the skull defect on the right side as control group. Skull samples were taken out at 4, 6, 8 weeks after implantation for soft X-ray detection, hematoxylin-eosin staining and modified Gomori staining.
RESULTS AND CONCLUSION: (1) Soft X-ray: The trabecular bone area of the experimental group was larger than that of the control group at 6 and 8 weeks after implantation (P < 0.05 or P < 0.01). (2) Hematoxylin-eosin staining: With the duration of implantation, newly formed fibers with bone structure gradually reduced at the defect sites in both groups, and there was a orderly layered arrangement in the bone structure and increased calcification. Compared with the control group, relatively higher new bone maturity, better bone trabecular arrangement and more osteoblasts were observed in the experimental group. (3) Modified Gomori staining: With the prolongation of implantation time, the new bone became mature gradually in the two groups, and the bone maturity in the experimental group was higher than that in the control group. To conclude, platelet-rich fibrin combined with tooth ash is better to promote bone defect repair. 

Key words: Dental Implantation, Bone Degeneration, Tissue Engineering

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