China Journal of Oral and Maxillofacial Surgery ›› 2017, Vol. 15 ›› Issue (5): 408-412.doi: 10.19438/j.cjoms.2017.05.006

• Original Articles • Previous Articles     Next Articles

Repair of bone defect by using mineralized collagen materials and collagen membrane in minipig models

WANG Piao1, YAO Yao2, ZHAO Hao3, PAN Ju-li4, CUI Fu-zhai5,GUO Ya-juan6.   

  1. 1.Department of Oral and Maxillofacial Plastic & Trauma Surgery, 2.Department of Prosthodontics, School of Stomatology, Capital Medical University. Beijing 100050;
    3.Guangdong Provincial Stomatological Hospital, Southern Medical University. Guangzhou 510280, Guangdong Province;
    4.Multidisciplinary Treatment Center, Capital Medical University. Beijing 100050;
    5.School of Materials Science and Engineering, Tsinghua University. Beijing 100084;
    6. Center For Medical Device Evaluation, CFDA. Beijing 100081,China
  • Received:2016-12-08 Online:2017-08-30 Published:2017-10-27

Abstract: PURPOSE: The aim of this study was to compare the clinical and histologic outcomes of bone regeneration using two different graft materials: deproteinized bovine bone mineral (Bio-Oss) and mineralized collagen bone materials (ChiBei) with absorbable collagen membrane, thus to evaluate the effect of ChiBei on bone regeneration. METHODS: The molars of the minipig were extracted, a 10mm×10mm bone defect was created. Bone defect was filled with Bio-Oss and ChiBei respectively and with absorbable collagen membrane as well. Cone-beam CT (CBCT) was taken 12 weeks after surgery and bone samples were stained with Goldner's Trichrome. The new regenerated area was calculated by the image analysis software Image-Pro plus 6.0 and the percentages of newly formed bone were compared between two groups using SPSS 22.0 software package. RESULTS: Bone defect was filled with new regenerated bone in each group. There was no significant difference in bone density between the ChiBei and Bio-Oss group on CBCT, so did the histologic analysis results. CONCLUSIONS: Based on the findings of the study, we speculated ChiBei materials covered with collagen membrane have positive effect on bone regeneration after tooth extraction, but more researches need to be carried out.

Key words: Site preservation, Bone defect regeneration, ChiBei materials, Guided bone regeneration

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