中华口腔医学研究杂志(电子版) ›› 2010, Vol. 4 ›› Issue (02) : 114 -119. doi: 10.3877/cma.j.issn.1674-1366.2010.02.002 × 扫一扫
基础研究
收稿日期:
出版日期:
通信作者:
Yue-jing FAN1, Chun-lan WANG1,†(), Ying WANG1, Jing-jing CHEN1
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范月静, 王春兰, 王英, 陈晶晶, 蒲勤. 骨形成蛋白与胶原基纳米骨修复牙周骨缺损的实验研究[J/OL]. 中华口腔医学研究杂志(电子版), 2010, 4(02): 114-119.
Yue-jing FAN, Chun-lan WANG, Ying WANG, Jing-jing CHEN. The experimental study of periodontal bone defects repair with bone morphogenetic protein-nano-HAP-collagen[J/OL]. Chinese Journal of Stomatological Research(Electronic Edition), 2010, 4(02): 114-119.
目的
探讨重组人骨形成蛋白-2(rhBMP-2)和胶原基纳米骨复合材料(nHAC)修复牙周骨缺损的效果。
方法
制备小型猪牙周骨缺损模型,设立rhBMP-2-nHAC 复合材料植入组、空白对照组和单纯植入胶原基纳米骨组,术后8 周观察各组间修复效果及组织病理学变化,通过骨组织形态计量学测定分析评价牙周骨组织的再生情况。
结果
术后8 周可见复合材料植入组大量新生牙周组织生长,四环素单标记表面、四环素双标记表面、骨矿化沉积率、骨体积、类骨质表面、成骨细胞表面等骨组织形态计量学结果与空白对照组和单纯胶原基纳米骨组比较,差别均有统计学意义(P <0.05)。
结论
rhBMP-2 和nHAC 可明显促进牙周骨缺损修复。
Objective
To observe and evaluate the effects of recombinant human bone morphogenetic protein-2 (rhBMP-2) and nano-HAP-Collagen (nHAC) on periodontal bone defects repair.
Methods
The rhBMP-2 combined with nHAC were transplanted into man-made periodontal bone defects, and the groups covered with only nHAC or with nothing were the controls. The animals were sacrificed after 8 weeks and the periodontal bone regeneration was observed histologically. Bone histomorphometry was measured.
Results
The rhBMP-2-nHAC group exhibited a large amount of new periodontal tissue. In the bone histomorphometry study,significant differences were found for the STS, DTS, MAR, TBV, TOS and TBOS values among the three groups (P <0.05). The values of rhBMP-2-nHAC and nHAC group were significantly higher than that of the control group (P <0.05). The difference of those value were statistically significant between rhBMP-2-nHAC and nHAC group, too (P < 0.05).
Conclusions
The rhBMP-2-nHAC compound material presents better osteoconductive and osteoinductive activity. It can be used to promote periodontal regeneration.