Chinese Journal of Tissue Engineering Research ›› 2019, Vol. 23 ›› Issue (6): 888-893.doi: 10.3969/j.issn.2095-4344.1538

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Osseointegration induced by beta-tricalcium phosphate loaded with advanced platelet-rich fibrin

Liu Dan1, 2, Min Changqin3, Lu Shuai4, Chen Yue5, Sun Yong1, 2   

  • Received:2018-09-23 Online:2019-02-28 Published:2019-02-28
  • Contact: Sun Yong, Professor, Master’s supervisor, Hospital of Stomatology, Southwest Medical University, Luzhou 646000, Sichuan Province, China; Sichuan Hospital of Stomatology, Chengdu 610031, Sichuan Province, China
  • About author:Liu Dan, Master candidate, Hospital of Stomatology, Southwest Medical University, Luzhou 646000, Sichuan Province, China; Sichuan Hospital of Stomatology, Chengdu 610031, Sichuan Province, China
  • Supported by:

    the Open Project of the State Key Laboratory of Military Stomatology, No. 2016KB01 (to SY)

Abstract:

BACKGROUND: Preliminary studies have shown that β-tricalcium phosphate loaded with advanced platelet-rich fibrin can induce bone formation and promote bone repair, which is better than β-tricalcium phosphate or advanced platelet-rich fibrin alone. 

OBJECTIVE: To further explore the osseointegration properties of newly formed bone induced by β-tricalcium phosphate loaded with advanced platelet-rich fibrin.
METHODS: Eighteen Japanese rabbits provided by Chengdu Dashuo Biotechnology Co., Ltd. in China were used for establishing the bilateral femoral condyle defect models (6 mm in diameter and 10 mm in depth). There were three groups implanted with advanced platelet-rich fibrin, β-tricalcium phosphate or β-tricalcium phosphate loaded with advanced platelet-rich fibrin (mass ratio 1:1) composite, respectively. At 3 months after implantation, the DIO implant was implanted. The newly bone samples with the implants were then obtained to perform micro-CT and push-out test of implants at 4 and 12 weeks. The osteogenic properties and maximum load of the implant-bone interface were detected.

RESULTS AND CONCLUSION: Micro-CT findings revealed that the amount of newly formed bone in each group was increased with time, which was significantly higher in the combined group than the other two groups at 4 and 12 weeks after implantation (P < 0.05). Results from the push-out test of implants showed that as time went on, the maximum push strength of each group was increased, which was significantly higher in the combined group than in the other two groups at 4 and 12 weeks after implantation (P < 0.05). In summary, the combined strength of the implant-bone interface of β-tricalcium phosphate loaded with advanced platelet-rich fibrin is superior to that of advanced platelet-rich fibrin or β-tricalcium phosphate.

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: Fibrin, Calcium Phosphates, Dental Implants, Synostosis, Tissue Engineering

CLC Number: