自体骨环植骨并同期种植的动物实验研究  

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

作　　者：余科 刘文佳 陈河林[2] 扶涛子 王艺桥[2] 王航[2] 谭震[3] 

机构地区：[1]西南医科大学附属口腔医院修复科,四川泸州646000 [2]四川大学华西口腔医院修复科,四川成都610041 [3]四川大学华西口腔医院种植科,四川成都610041

出　　处：《口腔医学研究》2016年第4期347-351,共5页Journal of Oral Science Research

基　　金：教育部博士点基金(编号:W2013ZZXH01)

摘　　要：目的:在Beagle犬下颌骨行自体骨环植骨并同期种植术,通过评估实验前后种植体周围软硬组织的改变,为骨环植骨术的临床应用提供动物研究依据。方法:选择6只成年健康雄性Beagle犬,拔除双侧下颌第二、第四前磨牙,实验组同期制造拔牙位颊侧骨壁缺损。3月后实验组行自体骨环植骨并同期植入Straumann种植体,对照组常规植入种植体。术后3月,用Osstell动度测量仪测量种植体的稳定性,用游标卡尺直接测量种植体周围垂直骨吸收量。结果:术后3月,骨环植骨成功率为94.4%,种植体成活率为100%;实验组种植体的稳定性与对照组无统计学差别,比种植初期明显提高;骨环平均垂直吸收量为(1.13±0.33)mm,且颊舌侧高于近远中,实验组种植体平均暴露高度为(0.62±0.25)mm。结论:自体骨环植骨并同期种植是一种简便易行的解决牙槽骨量不足的方法,效果肯定,垂直骨吸收量可控制在临床可接受的范围。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 3months,the success rate of bone ring graft was94.4%,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.

关 键 词：骨环 种植 BEAGLE犬 自体骨移植 

分 类 号：R782.1[医药卫生—口腔医学]