纯钛等离子涂层圆柱状骨内种植体与周围骨界面的三维结构分析

发布时间：2018-09-05 07:09

【摘要】：目的:通过组织形态学的方法评价和分析纯钛等离子涂层圆柱状骨内种植体与周围骨界面的三维结构情况。方法:选择2只成年雄性比格犬,拔除双侧下颌第二、第四前磨牙,自行愈合3个月,植入纯钛等离子涂层圆柱状种植体,共8枚。3个月后处死动物,取下包含种植体的下颌骨,固定后用自动磨片机切片、染色、拍照数字化后输入计算机构建三维结构模型并分析。结果:种植体平均骨接触率(bone contact ratio,BCR)为(64.5±5.3)%,最高在舌侧和上部,最低在近远中和底部。平均骨体积率(bone volume ratio,BVR)为(68.9±4.4)%,最佳在舌侧150~225μm带和上部,最差在近远中0~75μm带和底部。结论:纯钛等离子涂层圆柱状骨内种植体与周围骨界面的三维结构能清晰的构建出来,二者能形成良好的结合,特别是在皮质骨致密的舌侧和上部。
[Abstract]:Aim: to evaluate and analyze the three-dimensional structure of the interface between the pure titanium plasma coated cylindrical implants and the surrounding bone by the method of histomorphology. Methods: two adult male Beagle dogs were selected and bilateral mandibular second and fourth premolars were extracted and healed for 3 months. A total of 8 titanium plasma coated cylindrical implants were implanted. The animals were killed 3 months later. The mandible containing implants was removed. After fixation, the three-dimensional structure model was constructed and analyzed by automatic grinder, staining, digitization and computer input. Results: the average bone contact rate (bone contact ratio,BCR) of the implant was (64.5 卤5.3), the highest was in the lingual side and the upper part, the lowest in the near distal and the bottom. The average bone volume rate (bone volume ratio,BVR) was (68.9 卤4.4), the best was in the upper and 150 渭 m bands of the lingual side, and the worst was in the near distal 0 ~ 75 渭 m band and the bottom. Conclusion: the three-dimensional structure of the interface between the pure titanium plasma coated cylindrical implants and the surrounding bone can be clearly constructed, and they can form a good combination, especially in the dense lingual side and the upper part of the cortical bone.
【作者单位】：西南医科大学附属口腔医院修复科·西南医科大学口颌面修复重建和再生实验室;口腔疾病研究国家重点实验室四川大学华西口腔医院;西南医科大学附属医院规划财务部;
【基金】：口腔疾病研究国家重点实验室开放课题(编号:SKLOD2015OF09) 四川省卫生计生委科研课题(编号:16PJ173)
【分类号】：R783.6

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