Journal of Oral Science Research ›› 2016, Vol. 32 ›› Issue (4): 347-351.DOI: 10.13701/j.cnki.kqyxyj.2016.04.008

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Experimental Study of Autogenous Bone Ring Graft with Simultaneous Implant Placement in Dogs.

YU Ke1,LIU Wen-jia3, CHEN He-lin3, FU Tao-zi3, WANG Yi-qiao3, WANG Hang3,TAN Zhen2*.   

  1. 1. Department of Prosthodontics, Hospital of Stomatology Affiliated to Soutbwest Medical University, Luzhou 646000, China;
    2. Department of Implantology, West China Hospital of Stomatology Affiliated to Sichuan University, Chengdu 610041, China;
    3. Department of Prosthodontics, West China Hospital of Stomatology Affiliated to Sichuan University, Chengdu 610041, China
  • Received:2015-11-17 Online:2016-04-28 Published:2016-04-28

Abstract: Objective: To find evidence supporting autogenous bone ring graft in clinic through observing the change of soft and hard tissues around implants placed in mandibles of Beagle dogs with simultaneous autogenous bone rings graft. Methods: Six adult healthy male Beagle dogs were selected. The bilateral mandibular second premolars and fourth premolars were extracted, and buccal bone plate defects were prepared simultaneously in the extraction sites of the experimental group. After 3 months, autogenous bone ring graft with simultaneous implant (Straumann) placement was done in the experimental group and implants were placed conventionally in the control group. Three months later,the stability of the implants was tested with Osstell and the vertical bone resorption around the implants was measured with slidecaliper. Results: After 3 months, the success rate of bone ring graft was 94.4%, and the survival rate of the implants was 100%. The stability of implants in the experiment group increased in contrast to the initial situation and no difference was found between experiment and control groups. The average resorption of bone rings in the vertical direction was (1.13±0.33)mm, and it was higher in the baccal and lingual sites than that in the mesial and distal sites. The average exposure height of the implants in the experiment group was (0.62±0.25)mm. Conclusion: Autogenous bone ring graft with implant simultaneous placement is a simple and feasible method to solve the problem of alveolar bone defect, and the vertical bone resorption can be controlled in the clinical acceptable range.

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