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首页> 外文期刊>Journal of biomedical materials research. Part B, Applied biomaterials. >Histometric analysis and topographic characterization of cp Ti implants with surfaces modified by laser with and without silica deposition
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Histometric analysis and topographic characterization of cp Ti implants with surfaces modified by laser with and without silica deposition

机译：具有和不具有二氧化硅沉积的激光修饰表面的cp Ti植入物的组织学分析和形貌表征

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Biologic behavior of the bone tissue around implants with four different surfaces was evaluated. The surfaces were: modified by laser (LS); modified by laser with sodium silicate deposition (SS); and commercially available surfaces modified by acid etching (AS) and machined surface (MS). Topographic characterization of the surfaces was performed by scanning electron microscopy (SEM)- energy dispersive X-ray spectrometry (EDX) before experimental surgery. Thirty rabbits received 60 implants in their right and left tibias, 1 implant of each surface being placed in each tibia. The analyzed periods were 4,8, and 12 weeks postoperatively. Histometric analysis was performed evaluating bone interface contact (SIC) and bone area (BA). The results obtained were submitted to the analysis of variance and the Tukey t-test. The elemental mapping was evaluated by means of SEM at 4 weeks postoperatively. The topographic characterization showed differences between the analyzed surfaces. Generally, the BIC and BA of LS and SS implants were statistically higher than those of AS and MS in most of the analyzed periods. Elemental mapping showed high peaks of calcium and phosphorous in all groups. Based on the present methodology, it may be concluded that experimental modifications LS and SS accelerated the stages of the bone tissue repair process around the implants, providing the highest degree of osseointegration. (C) 2014 Wiley Periodicals, Inc.
机译：评价了具有四个不同表面的植入物周围的骨组织的生物学行为。表面：通过激光（LS）改性;激光修饰硅酸钠沉积（SS）;以及通过酸蚀刻（AS）和机加工表面（MS）改性的市售表面。在实验性手术之前，通过扫描电子显微镜（SEM）-能量色散X射线光谱法（EDX）对表面进行形貌表征。 30只兔子在其左右胫骨中接受了60个植入物，每个表面中的1个植入物被放置在每个胫骨中。分析的时间是术后4,8和12周。进行直方图分析以评估骨界面接触（SIC）和骨面积（BA）。将获得的结果提交给方差分析和Tukey t检验。术后4周通过SEM评估元素图谱。形貌特征表明分析表面之间的差异。通常，在大多数分析期间，LS和SS植入物的BIC和BA在统计学上均高于AS和MS的BIC和BA。元素图谱显示所有组中的钙和磷峰较高。基于本方法，可以得出结论，实验修改LS和SS加快了植入物周围骨组织修复过程的阶段，提供了最高程度的骨整合。 （C）2014威利期刊公司

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