Chinese Journal of Tissue Engineering Research ›› 2016, Vol. 20 ›› Issue (16): 2360-2368.doi: 10.3969/j.issn.2095-4344.2016.16.011

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Mandibular defects repaired by coral bone with platelet rich plasma

Jiang Liu-hong1, Dong Ying2, Yan Chun-ge1, Liu Yan-hui1, Jing Xiang-dong1   

  1. 1Department of Stomatology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China; 2Department of Stomatology, Clifford Hospital, Guangzhou University of Chinese Medicine, Guangzhou 511495, Guangdong Province, China
  • Received:2016-03-10 Online:2016-04-15 Published:2016-04-15
  • About author:Jiang Liu-hong, Master, Attending physician, Department of Stomatology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, Guangdong Province, China

Abstract:

BACKGROUND: Platelet rich plasma contains various growth factors, such as platelet-derived growth factor, metastatic growth factor, insulin-like growth factor, epidermal growth factor as well as vascular endothelial growth factor. Therefore, it can directly or indirectly promote cell differentiation and proliferation in different stages of bone regeneration.

OBJECTIVE: To study the effects of coral bone with platelet rich plasma in the repair of mandibular defects.
METHODS: Totally 24 New Zealand white rabbits were randomly divided into three groups (n=8 per group) including test group, control group and blank control group. Coral bone with autologous platelet rich plasma, coral bone or nothing was implanted, respectively, after establishing unilateral mandibular defect models. The defects were evaluated by imaging observation and bone his-tomorphometric analysis at 2, 4, 8, 12 weeks after surgery.
RESULTS AND CONCLUSION: At 12 weeks after surgery, by imaging observation, density of the defect increased in the blank control group, which was lower than that of the normal bone; the bone density in the test group was higher than that in the control group, both of which were similar with the normal bone. Besides, the materials were closely combined with the new tissues. By bone his-tomorphometric analysis, area of the new bone in the test group was significantly larger than that in the control and blank control group (P < 0.05). In conclusion, coral bone with platelet rich plasma has good biocompatibility and bone conductivity, which can induce bone regeneration to promote defect repair.
中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程

Key words: Platelet-Rich Plasma, Mandible, Tissue Engineering