Chinese Journal of Tissue Engineering Research ›› 2017, Vol. 21 ›› Issue (16): 2509-2514.doi: 10.3969/j.issn.2095-4344.2017.16.009

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Influence of different intensities of extracorporeal shock waves on the osteogenesis ability of alveolar osteoblasts

Guo Yuan1, Zhang Chi2, Liu Song2, Wang Zhao2, Pan Xing-fei3, Wang Le2   

  1. 1Department of Stomatology, 2Department of Orthopedics, 3Department of Infectious Diseases, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
  • Revised:2017-03-10 Online:2017-06-08 Published:2017-07-06
  • Contact: Wang Le, M.D., Associate chief physician, Department of Orthopedics, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
  • About author:Guo Yuan, Master, Attending physician, Department of Stomatology, the Third Affiliated Hospital of Guangzhou Medical University, Guangzhou 510150, Guangdong Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 31570980; the Public Research and Construction Project of Guangdong Province, No. 2014A020212347; the Scientific Research Project of Universities in Guangzhou, No. 1201430092

Abstract:

BACKGROUND: Oral inflammatory diseases usually cause alveolar bone loss and odontoseisis, and further impact dental occlusion. Extracorporeal shock wave therapy (ESWT) is a promising method for the repair of alveolar bone and improving osteogenic activity of alveolar osteoblasts, but its therapeutic efficacy and related mechanisms remain unclear.

OBJECTIVE: To compare the effect of different intensities of ESWT on the proliferation and osteogenesis abilities of rat alveolar osteoblasts.
METHODS: The rat alveolar osteoblasts were obtained and cultured in vitro, and further identified by alkaline phosphatase staining. 0.18, 0.36, and 0.50 mJ/mm2 ESWT was used to stimulate the rat alveolar osteoblasts, 100 pulses, respectively.

RESULTS AND CONCLUSION: The levels of alkaline phosphatase and bone morphogenetic protein 2 were significantly increased in the 0.36 and 0.18 mJ/mm2 ESWT groups, especially in the 0.36 mJ/mm2 ESWT group (P < 0.05). 0.50 mJ/mm2 ESWT significantly decreased the proliferation ability of rat alveolar osteoblasts and downregulated the levels of alkaline phosphatase and bone morphogenetic protein 2 (P < 0.05). To conclude, ESWT (< 0.36 mJ/mm2) can improve the osteogenesis ability of rat alveolar osteoblasts with the intensity increasing, which provides a theoretical basis for the clinical use of ESWT in the alveolar bone repair.

 

 

Key words: High-Energy Shock Waves, Cell proliferation, Tissue Engineering

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