中国组织工程研究 ›› 2018, Vol. 22 ›› Issue (18): 2831-2835.doi: 10.3969/j.issn.2095-4344.0873

• 组织工程骨及软骨材料 tissue-engineered bone and cartilage materials • 上一篇    下一篇

人牙骨移植材料修复兔胫骨缺损形成新骨的抗压强度

方 明1,王稚英2,才 路2   

  1. 1渤海大学教育学院,辽宁省锦州市 121004;2锦州医科大学附属第二医院口腔种植中心,辽宁省锦州市121001
  • 收稿日期:2018-05-16 出版日期:2018-06-28 发布日期:2018-06-28
  • 通讯作者: 王稚英,教授,锦州医科大学附属第二医院口腔种植中心,辽宁省锦州市 121001
  • 作者简介:方明,女,1964年生,辽宁省北镇市人,满族,1994年北京师范大学毕业,硕士,教授,主要从事生物力学方面的研究。
  • 基金资助:

    辽宁省省直医院改革重点临床科室诊疗能力建设项目(LNCCL-C10-2015);锦州市科技局科研课题(15A1D33)

Compressive strength of the newly formed tibia after repair with human tooth bone graft

Fang Ming1, Wang Zhi-ying2, Cai Lu2   

  1. 1College of Education, Bohai University, Jinzhou 121004, Liaoning Province, China; 2Center of Dental Implant, the 2nd Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, Liaoning Province, China
  • Received:2018-05-16 Online:2018-06-28 Published:2018-06-28
  • Contact: Wang Zhi-ying, Professor, Center of Dental Implant, the 2nd Affiliated Hospital of Jinzhou Medical University, Jinzhou 121001, Liaoning Province, China
  • About author:Fang Ming, Master, Professor, College of Education, Bohai University, Jinzhou 121004, Liaoning Province, China
  • Supported by:

    the Liaoning Provincial Hospital Reform Project for Clinical Diagnosis and Treatment, No. LNCCL-C10-2015; the Scientific Research Project of Jinzhou Municipal Science and Technology Department, No. 15A1D33

摘要:

文章快速阅读:

 

文题释义:
牙骨移植材料:将自体或异体的牙齿清洗,去除表面牙垢、牙周膜,开髓,去除牙髓,锤击敲碎,筛孔过滤成直径150-500 μm的颗粒,应用真空超声波牙齿脱矿加速器酸处理脱矿,形成牙骨移植材料,用于牙种植区骨缺损或其他骨缺损的修复。
新骨的抗压强度:抗压强度是指外力施压力时材料的强度极限。不同骨移植材料植入骨缺损后形成新骨的抗压强度对牙种植体与新骨的骨结合具有重要意义,新骨的抗压强度是通过最大抗压力和刚度来表达的,新骨的最大抗压力与刚度是决定新骨强度和质量的重要因素。
 
 
背景:国外已有将自体牙骨移植材料用于修复牙种植区骨量不足,但形成新骨的强度和质量的研究国内外报道较少。
目的:探讨人牙骨移植材料植入兔胫骨缺损形成的新骨的抗压强度。
方法:①取患者遗弃的完整正畸拔除牙、松动磨牙、双尖牙制备人牙骨移植材料;②利用环形骨锯制作2个直径5 mm的胫骨洞穿性骨缺损兔模型,分别设为牙骨移植材料组和牛骨移植材料组,植入人牙骨移植材料和市售牛骨移植材料,以未损伤部位作为对照组。

结果与结论:牙骨移植材料组修复兔胫骨缺损形成新骨的显微结构明显比牛骨移植材料组完整,且新骨的最大抗压强度和刚度均大于牛骨移植材料组。说明牙骨移植材料修复兔胫骨缺损形成新骨的效果优于牛骨移植材料。

ORCID: 0000-0003-4229-5276(王稚英) 

 

关键词: 牙骨移植材料, 最大抗压力, 刚度, 骨缺损, 牛骨移植材料, 兔, 胫骨, 牙种植, 生物材料

Abstract:

BACKGROUND: Human tooth bone graft has been used for bone deficiency in dental implantation, but the strength and quality of newly formed bones with human tooth bone graft are in need of sound investigation.

OBJECTIVE: To investigate the compressive strength of newly formed rabbit tibia after repair with human tooth bone graft.

METHODS: Orthodontic teeth, loose molars, bicuspid premolars extracted from patients were taken to prepare human tooth bone grafts. Human tooth bone graft and bovine bone graft were independently placed into the rabbit tibia defects of 5 mm in diameter. Non-injured site served as control group.
RESULTS AND CONCLUSION: The newly formed rabbit tibia after repair with human tooth bone graft had more intact microstructure and higher maximum compressive strength and stiffness relative to that after repair with bovine bone graft. These findings indicate human tooth bone graft is superior to bovine bone graft in the repair of tibia defects in rabbits. 

Key words: Dental Implantation, Tibia, Tissue Engineering

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