中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (48): 8374-8380.doi: 10.3969/j.issn.2095-4344.2013.48.013

• 骨与关节损伤基础实验 basic experiments of bone and joint injury • 上一篇    下一篇

辛伐他汀复合Bio-Oss修复兔下颌骨缺损

王  洋,焦  鑫,梁恒燕,葛振林   

  1. 兰州大学口腔医(学)院正畸科,甘肃省兰州市  730000
  • 出版日期:2013-11-26 发布日期:2013-11-26
  • 通讯作者: 葛振林,教授,硕士生导师,兰州大学口腔医(学)院正畸科,甘肃省兰州市 730000 gezhl@lzu.edu.cn
  • 作者简介:王洋★,男,1985年生,甘肃省兰州市人,汉族,2013年兰州大学毕业,硕士,主要从事口腔临床基础方面研究。 wangyang711@gmail.com
  • 基金资助:

    甘肃省自然科学研究基金资助项目(1208RJZA209)*

Simvastatin compounded with Bio-Oss repairs rabbit mandibular defects

Wang Yang, Jiao Xin, Liang Heng-yan, Ge Zhen-lin   

  1. Department of Orthodontics, Lanzhou University Stomatology Hospital (School of Stomatology), Lanzhou  730000, Gansu Province, China
  • Online:2013-11-26 Published:2013-11-26
  • Contact: Ge Zhen-lin, Professor, Master’s supervisor, Department of Orthodontics, Lanzhou University Stomatology Hospital (School of Stomatology), Lanzhou 730000, Gansu Province, China gezhl@lzu.edu.cn
  • About author:Wang Yang★, Master, Department of Orthodontics, Lanzhou University Stomatology Hospital (School of Stomatology), Lanzhou 730000, Gansu Province, China wangyang711@gmail.com
  • Supported by:

    Natural Science Foundation of Gansu Province, No.1208RJZA209*

摘要:

背景:研究发现辛伐他汀具有促进新骨形成的作用,但其成骨机制及成骨效果目前仍然存在争议。
目的:对比观察Bio-Oss/辛伐他汀复合材料与单纯Bio-Oss修复材料修复兔下颌骨骨缺损区的成骨效果。
方法:12只新西兰大白兔下颌骨双侧制备缺损,随机将一侧采用辛伐他汀复合Bio-Oss修复缺损区;另一侧采用单纯Bio-Oss修复缺损区。两组均覆盖Bio-Gide胶原膜。植骨后4,8,12周分别处死各组兔子4只,通过大体观察,X射线及口腔锥形束CT影像学观察,组织学切片观察,定性定量对比分析植骨区牙槽骨形成情况。
结果与结论:植骨后4,8,12周新骨形成逐渐增多,随着高阻射的Bio-Oss骨粉逐渐降解,在各时间点密度值测量结果辛伐他汀复合Bio-Oss组均显著低于单纯Bio-Oss组(P < 0.05)。新生骨百分比测量结果辛伐他汀复合Bio-Oss均显著高于单纯Bio-Oss组(P < 0.05)。提示辛伐他汀具有促进Bio-Oss骨粉吸收的效果,在骨缺损修复中具有促进新骨生成的作用。

关键词: 骨关节植入物, 骨关节损伤基础实验, 辛伐他汀, 骨缺损修复, 引导骨再生技术, Bio-Oss, Bio-Gide, 下颌骨, 口腔锥形束CT, 新骨生成, 省级基金

Abstract:

BACKGROUND: Studies have shown that simvastatin can promote bone formation, but there is still controversial on the osteogenic mechanism and osteogenic effect.
OBJECTIVE: To explore the osteogenesis effect of the composite of simvastatin and Bio-Oss versus simple Bio-Oss material on the repair of rabbit mandibular defects.
METHODS: Twelve New Zealand white rabbits were selected to establish alveolar bilateral mandibular defects models. The composite of simvastatin and Bio-Oss was implanted randomly in one side of defect region; Bio-Oss was simply implanted in the other side of defect region. Both sides were covered with Bio-Gide bilayer collagen membrane. Four rabbits in each group were sacrificed at 4, 8 and 12 weeks after implantation, and the general observation X-ray film, oral cone-beam CT imaging observation and histopathologic study and quantitatively were conducted to quantitatively and qualitatively comparative analyze the alveolar bone formation in the graft region.
RESULTS AND CONCLUSION: At 4, 8 and 12 weeks after implantation, new bone formation was found and increased with time prolonging. With the gradual degeneration of high resistance fire Bio-Oss bone meal, the bone mineral density at different time points of the simvastatin composite Bio-Oss group was lower than that of the simple Bio-Oss group (P < 0.05). The percentage of bone formation in the simvastatin composite Bio-Oss group was significantly higher than that in the simple Bio-Oss group (P < 0.05). Simvastatin could accelerate Bio-Oss degradation and promote new bone formation in bone defects repairing.

Key words: bone regeneration, guided tissue regeneration, mandible, osteogenesis

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