Effect of rat allogeneic BMSCs-Bio-Oss-bFGF compound on tooth extraction healing: a micro-CT study

doi:10.19439/j.sjos.2022.01.008

Abstract

Abstract: PRUPOSE: To investigate the effect of a compound of BMSCs-Bio-Oss-bFGF on microstructure of extraction sockets in rats. METHODS: Bone mesenchymal stem cells (BMSCs) were isolated from bone marrow of 3-week SD rats by adherent method. Maxillary posterior teeth of 36 6-week SD rats were extracted and materials were implanted into sockets according to grouping. The rats were divided into 4 groups: compound group with implanting BMSCs-Bio-Oss-bFGF compound, powder group with implanting Bio-Oss, BMSCs group with implanting BMSCs, and control group without implanting any materials. The sockets were scanned by micro-CT 4 weeks, 12 weeks and 24 weeks after implantation. Two-way ANOVA was used to assess whether there was significant difference between groups with GraphPad Prism 6.0 software package. RESULTS: There was no significant difference among groups in bone mineral density (BMD), trabecular separation(Tb.Sp), trabecular thickness(Tb.Th), degree of anisotropy(DA), and trabecular number(Tb.N) 4 weeks after implantation. By 12 weeks, BMD of compound group was significantly greater than those of BMSCs group, powder group and control group (P<0.05), and significantly greater than those of powder group and control group at 24 weeks (P<0.05). Tb.Th of compound group was significantly greater than that of BMSCs group at 12 and 24 weeks(P<0.05). DA had no significant difference among groups at 4, 12, and 24 weeks (P>0.05). Tb.Sp of compound group was significantly smaller than those of powder group, BMSCs group and control group at 24 weeks(P<0.05). Tb.N of compound group was significantly greater than those of BMSCs group and control group(P<0.05). CONCLUSIONS: The compound of rat allogeneic BMSCs-Bio-Oss-bFGF improves socket healing.

Key words: Bone marrow mesenchymal stem cells, Bio-Oss, bFGF, Socket, Micro-CT

CLC Number:

R782.1

JIANG Yin-hua, SHANG Yu, ZOU Duo-hong, CHEN Lu, FEI Chen-yan, LIANG Kai. Effect of rat allogeneic BMSCs-Bio-Oss-bFGF compound on tooth extraction healing: a micro-CT study[J]. Shanghai Journal of Stomatology, 2022, 31(1): 38-43.

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